Dr Rair Macedo
- Senior Lecturer in Electrodynamics and Spin systems (Electronic & Nanoscale Engineering)
telephone:
01413305892
email:
Rair.Macedo@glasgow.ac.uk
pronouns:
He/him/his
R3119, Advanced Research Centre, 11 Chapel Lane, University of Glasgow, G11 6EW
https://orcid.org/0000-0003-3358-798XBiography
Dr Rair Macêdo is a theoretical physicist by training—but every so often dabbles in the world of experimental physics. He started pursuing research at the age of 16, as a part of his BSc studies, in the area of novel optical effects in natural hyperbolic media. After receiving a PhD in physics from the University of Glasgow in a similar area, but at an advanced theoretical level, modelling electromagnetic properties of magnetic structures, he held a Leverhulme Trust Early Research Fellowship to develop novel metamaterials to control and manipulate electromagnetic waves. He is currently a Lecturer in Electrodynamics and Spin Electronics at the Electronic & Nanoscale Engineering Division of the James Watt School of Engineering, University of Glasgow.
Research interests
I study spins and spin systens as well as photonic, optic, magnetic and electromagnetic properties of matter.
My current research interests include:
- Cavity Magnon-polariton quasiparticles (hybridisation between magnons and photons);
- Metamaterials;
- Magnetic media for signal processing devices;
- Magnons-polaritons and optical properties of magnets;
- Anisotropy in condensed matter as route to hyperbolic media; and
- Novel optical effects including: Negative refraction, focusing by flat lenses, Goos-Hanchen shifts and nonreciprocity.
I am also currently working on ordering processes in a new class of frustrated and disordered systems called 'artificial spin ice', these include:
- Spin ice systems; and
- Liquid Crystals.
I am a member of the Quantum Circuits Laboratory.
Publication Highlights
Spin systems:
Macêdo, R. , Kudinoor, A. S., Livesey, K. L. and Camley, R. E. (2022) Breaking space inversion-symmetry to obtain asymmetric spin-wave excitation in systems with nonuniform magnetic exchange. Advanced Electronic Materials, 8(1), 2100435. (doi: 10.1002/aelm.202100435)
Hybrid quntum systems:
Wolz, T., Stehli, A., Schneider, A., Boventer, I., Macêdo, R. , Ustinov, A. V., Kläui, M. and Weides, M. (2020) Introducing coherent time control to cavity magnon-polariton modes. Communications Physics, 3, 3. (doi:10.1038/s42005-019-0266-x)
Boventer, I., Dörflinger, C., Wolz, T., Macedo, R. , Lebrun, R., Kläui, M. and Weides, M. (2020) Control of the coupling strength and linewidth of a cavity magnon-polariton. Physical Review Research, 2(1), 013154. (doi: 10.1103/PhysRevResearch.2.013154)
Photonics & Hyperbolic (meta) materials:
Wu, X., McEleney, C. A., González-Jiménez, M. and Macêdo, R. (2019) Emergent asymmetries and enhancement in the absorption of natural hyperbolic crystals. Optica, 6(12), pp. 1478-1483. (doi:10.1364/OPTICA.6.001478)
Macêdo, R. , Dumelow, T., Camley, R. E. and Stamps, R. L. (2018) Oriented asymmetric wave propagation and refraction bending in hyperbolic media. ACS Photonics, 5(12), pp. 5086-5094. (doi:10.1021/acsphotonics.8b01402)
Publications
2025
Linder, J. W., Lafferty, A. L., Stamps, R. L. and Macêdo, R. (2025) Hyperbolic optics in antiferromagnets with tilted anisotropy. Optics and Laser Technology, 184, 112440. (doi: 10.1016/j.optlastec.2025.112440)
McEleney, C. A., Camley, R. E. and Macedo, R. (2025) Decoherence in spin wave propagation via precursor pulses during signal equilibration. Scientific Reports, 15, 4458. (doi: 10.1038/s41598-025-88799-3)
2024
Camley, R. E., Macedo, R. and Livesey, K. L. (2024) Curie-Weiss behavior and the interaction temperature of magnetic nanoparticle ensembles: Local structure strongly affects the magnetic behavior. Physical Review B, 110(14), 144440. (doi: 10.1103/PhysRevB.110.144440)
Smith, M. A., Lafferty, A. L., Joseph, A., McMaster, M. R., Scott, J. N., Hendren, W. R., Bowman, R. M., Weides, M. P. and Macedo, R. (2024) Observation of room temperature exchange cavity magnon-polaritons in metallic thin films. Advanced Quantum Technologies, 7(8), 2300420. (doi: 10.1002/qute.202300420)
Joseph, A. et al. (2024) The role of excitation vector fields and all-polarisation state control in cavity magnonics. npj Spintronics, 2(59), (doi: 10.1038/s44306-024-00062-z) (PMCID:PMC11618086)
Stamps, R. L., Camley, R. E. and Macedo, R. (Eds.) (2024) Solid State Physics. Volume 75. Academic Press. ISBN 9780443297786
2023
Tyboroski, M., Macedo, R. and Camley, R. E. (2023) Extreme enhancement of nonreciprocal wave propagation in magneto-optical metamaterials. Physical Review Materials, 7(12), 125201. (doi: 10.1103/PhysRevMaterials.7.125201)
Silva, R.L., Silva, R.C., Pereira, A.R., McEleney, C. A. and Macêdo, R. (2023) Fractionalizing biskyrmions using magnons in a ferromagnetic thin film. Journal of Magnetism and Magnetic Materials, 586, 171194. (doi: 10.1016/j.jmmm.2023.171194)
Melnyk, O., Jones, R., Macêdo, R. and Camley, R. E. (2023) New quasiperiodic structures in nematic liquid crystals. Soft Matter, 19, pp. 7644-7654. (doi: 10.1039/D3SM00884C) (PMID:37779452)
Jones, R., Camley, R. E. and Macedo, R. (2023) Controlling asymmetric transmission in layered natural hyperbolic crystals. Optics and Laser Technology, 161, 109210. (doi: 10.1016/j.optlastec.2023.109210)
Macedo, R. and Stamps, R. L. (Eds.) (2023) Solid State Physics. Volume 74. Academic Press. ISBN 9780443137136
2022
Wu, X., McEleney, C. A., Shi, Z., González-Jiménez, M. and Macêdo, R. (2022) Asymmetric reflection induced in reciprocal hyperbolic materials. ACS Photonics, 9(8), pp. 2774-2782. (doi: 10.1021/acsphotonics.2c00551) (PMID:35996366) (PMCID:PMC9389604)
Chumak, A. V. et al. (2022) Roadmap on spin-wave computing. IEEE Transactions on Magnetics, 58(6), 0800172. (doi: 10.1109/TMAG.2022.3149664)
Macêdo, R. , Kudinoor, A. S., Livesey, K. L. and Camley, R. E. (2022) Breaking space inversion-symmetry to obtain asymmetric spin-wave excitation in systems with nonuniform magnetic exchange. Advanced Electronic Materials, 8(1), 2100435. (doi: 10.1002/aelm.202100435)
Macedo, R. (Ed.) (2022) Solid State Physics. Volume 73. Academic Press. ISBN 9780323989114
2021
Jones, R., Melnyk, O., Macedo, R. and Camley, R. E. (2021) Vertically stacked soliton-like domain walls in nematic liquid crystals. Advanced Theory and Simulations, 4(11), 2100252. (doi: 10.1002/adts.202100252)
Tyboroski, M., Macêdo, R. and Camley, R. E. (2021) Nonreciprocity in millimeter wave devices using a magnetic grating metamaterial. Physical Review Materials, 5(11), 115201. (doi: 10.1103/PhysRevMaterials.5.115201)
Peng, J., Tang, G., Wang, L., Macêdo, R. , Chen, H. and Ren, J. (2021) Twist-induced near-field thermal switch using nonreciprocal surface magnon-polaritons. ACS Photonics, 8(8), pp. 2183-2189. (doi: 10.1021/acsphotonics.0c01934)
Baity, P. G. et al. (2021) Strong magnon-photon coupling with chip-integrated YIG in the zero-temperature limit. Applied Physics Letters, 119(3), 033502. (doi: 10.1063/5.0054837)
Paterson, G. W. , Macauley, G. M. and Macêdo, R. (2021) Field-driven reversal models in artificial spin ice. Advanced Theory and Simulations, 4(7), 2100109. (doi: 10.1002/adts.202100109)
Melnyk, O., Jones, R., Macedo, R. , Garbovskiy, Y., Hagen, G., Glushchenko, A. V., Spendier, K. and Camley, R. E. (2021) Fast switching dual-frequency nematic liquid crystal tunable filters. ACS Photonics, 8(4), pp. 1222-1231. (doi: 10.1021/acsphotonics.1c00151)
Baity, P. G. et al. (2021) Strong Magnon-Photon Coupling On-Chip for YIG in the Zero-Temperature Limit. American Physical Society March Meeting 2021, Online, 15-19 Mar 2021.
Macêdo, R. , Holland, R. C., Baity, P. G. , McLellan, L. J., Livesey, K. L., Stamps, R. L. , Weides, M. P. and Bozhko, D. A. (2021) Electromagnetic approach to cavity spintronics. Physical Review Applied, 15(2), 024065. (doi: 10.1103/PhysRevApplied.15.024065)
Macedo, R. (2021) The 2021 magnetic hyperbolic polaritons roadmap. In: Camley, Robert E. and Stamps, Robert L. (eds.) Solid State Physics. Volume 72. Academic Press: Cambridge, MA, pp. 83-91. ISBN 9780323915175 (doi: 10.1016/bs.ssp.2021.08.004)
2020
Macêdo, R. , McEleney, C.A., González-Jiménez, M. and Wu, X. (2020) Unidirectional light propagation in natural crystals. Optics and Photonics News, 31(12), p. 53. (doi: 10.1364/OPN.31.12.000053)
Macedo, R. and Stamps, R. L. (2020) Electromagnetic waves in canted magnets. In: Donahue, Michael (ed.) Compendium on Electromagnetic Analysis From Electrostatics to Photonics: Fundamentals and Applications for Physicists and Engineers. World Scientific, pp. 231-261. ISBN 9789813270268 (doi: 10.1142/9789813270268_0007)
Rodrigues Lavor, I., Rabelo da Costa, D., Chaves, A., Farias, G. d. A., Macêdo, R. and Peeters, F. M. (2020) Magnetic field induced vortices in graphene quantum dots. Journal of Physics: Condensed Matter, 32(15), 155501. (doi: 10.1088/1361-648X/ab6463)
Macauley, G. M. , Paterson, G. W. , Li, Y., Macêdo, R. , McVitie, S. and Stamps, R. L. (2020) Tuning magnetic order with geometry: thermalisation and defects in two-dimensional artificial spin ices. Physical Review B, 101, 144403. (doi: 10.1103/PhysRevB.101.144403)
Wolz, T., Stehli, A., Schneider, A., Boventer, I., Macêdo, R. , Ustinov, A. V., Kläui, M. and Weides, M. (2020) Introducing coherent time control to cavity magnon-polariton modes. Communications Physics, 3, 3. (doi: 10.1038/s42005-019-0266-x)
Boventer, I., Dörflinger, C., Wolz, T., Macedo, R. , Lebrun, R., Kläui, M. and Weides, M. (2020) Control of the coupling strength and linewidth of a cavity magnon-polariton. Physical Review Research, 2(1), 013154. (doi: 10.1103/PhysRevResearch.2.013154)
2019
Porro, J. M., Morley, S. A., Venero, D. A., Macêdo, R. , Rosamond, M. C., Linfield, E. H., Stamps, R. L. , Marrows, C. H. and Langridge, S. (2019) Magnetization dynamics of weakly interacting sub-100 nm square artificial spin ices. Scientific Reports, 9, 19967. (doi: 10.1038/s41598-019-56219-y) (PMID:31882867) (PMCID:PMC6934880)
Boventer, I., Kläui, M., Macêdo, R. and Weides, M. (2019) Steering between level repulsion and attraction: broad tunability of two-port driven cavity magnon-polaritons. New Journal of Physics, 21(12), 125001. (doi: 10.1088/1367-2630/ab5c12)
Wu, X., McEleney, C. A., González-Jiménez, M. and Macêdo, R. (2019) Emergent asymmetries and enhancement in the absorption of natural hyperbolic crystals. Optica, 6(12), pp. 1478-1483. (doi: 10.1364/OPTICA.6.001478)
Paterson, G. W. et al. (2019) Heisenberg pseudo-exchange and emergent anisotropies in field-driven pinwheel artificial spin ice. Physical Review B, 100(17), 174410. (doi: 10.1103/PhysRevB.100.174410)
Proskurin, I., Macedo, R. and Stamps, R. L. (2019) Microscopic origin of level attraction for a coupled magnon-photon system in a microwave cavity. New Journal of Physics, 21(9), 095003. (doi: 10.1088/1367-2630/ab3cb7)
Macauley, G. M. , Paterson, G. W. , Li, Y., Macêdo, R. , McVitie, S. and Stamps, R. L. (2019) Ice-rule made manifold: phase transitions, topological defects and manifold restoration in two-dimensional artificial spin systems. arXiv, (Unpublished)
Yarbrough, P. M., Livesey, K. L., Camley, R. E. and Macêdo, R. (2019) Far-infrared reflection from heterostructures made of ultrathin ferromagnetic layers. Physical Review Applied, 12(2), 024004. (doi: 10.1103/PhysRevApplied.12.024004)
Li, Y. et al. (2019) Superferromagnetism and domain-wall topologies in artificial 'pinwheel' spin ice. ACS Nano, 13(2), pp. 2213-2222. (doi: 10.1021/acsnano.8b08884) (PMID:30588800)
Macedo, R. and Camley, R. E. (2019) Engineering terahertz surface magnon-polaritons in hyperbolic antiferromagnets. Physical Review B, 99, 014437. (doi: 10.1103/PhysRevB.99.014437)
2018
Macêdo, R. , Dumelow, T., Camley, R. E. and Stamps, R. L. (2018) Oriented asymmetric wave propagation and refraction bending in hyperbolic media. ACS Photonics, 5(12), pp. 5086-5094. (doi: 10.1021/acsphotonics.8b01402)
Macêdo, R. , Livesey, K. L. and Camley, R. E. (2018) Using magnetic hyperbolic metamaterials as high frequency tunable filters. Applied Physics Letters, 113(12), 121104. (doi: 10.1063/1.5049602)
Macêdo, R. , Macauley, G.M. , Nascimento, F.S. and Stamps, R.L. (2018) Apparent ferromagnetism in the 'pinwheel' artificial spin ice. Physical Review B, 98, 014437. (doi: 10.1103/PhysRevB.98.014437)
2017
Macêdo, R. (2017) Tunable hyperbolic media: magnon-polaritons in canted antiferromagnets. In: Camley, Robert E. and Stamps, Robert L. (eds.) Solid State Physics. Elsevier, pp. 91-155. ISBN 9780128119914 (doi: 10.1016/bs.ssp.2017.10.001)
2016
Macêdo, R. , Dumelow, T. and Stamps, R. L. (2016) Tunable focusing in natural hyperbolic magnetic media. ACS Photonics, 3(9), pp. 1670-1677. (doi: 10.1021/acsphotonics.6b00321)
2015
Macêdo, R. , Dumelow, T. and Stamps, R.L. (2015) Tunable Magneto-Optical Effects in Antiferromagnetic Structures. In: 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), Oxford, UK, 7-12 Sept 2015, pp. 454-456. ISBN 9781479978366 (doi: 10.1109/MetaMaterials.2015.7342485)
2014
Macêdo, R. , Stamps, R. L. and Dumelow, T. (2014) Spin canting induced large nonreciprocal Goos-Hänchen shifts. Optics Express, 22(23), pp. 28467-28478. (doi: 10.1364/OE.22.028467)
Macêdo, R. and Dumelow, T. (2014) Tunable all-angle negative refraction using antiferromagnets. Physical Review B, 89(3), 035135. (doi: 10.1103/PhysRevB.89.035135)
Macêdo, R. , Rodrigues da Silva, R., Dumelow, T. and da Costa, J.A.P. (2014) MgF2 as a material exhibiting all-angle negative refraction and subwavelength imaging due to the phonon response in the far infrared. Optics Communications, 310, pp. 94-99. (doi: 10.1016/j.optcom.2013.07.065)
2013
Macêdo, R. , Costa e Silva, J., Chaves, A., Farias, G.A. and Ferreira, R. (2013) Electric and magnetic field effects on the excitonic properties of elliptic core–multishell quantum wires. Journal of Physics: Condensed Matter, 25(48), 485501. (doi: 10.1088/0953-8984/25/48/485501)
Macêdo, R. , Costa e Silva, J., Chaves, A., Farias, G.A. and Ferreira, R. (2013) Magnetic field induced shell-to-core confinement transition in type-II semiconductor quantum wires. Journal of Applied Physics, 113(15), 153710. (doi: 10.1063/1.4802588)
Macêdo, R. and Dumelow, T. (2013) Beam shifts on reflection of electromagnetic radiation off anisotropic crystals at optic phonon frequencies. Journal of Optics, 15(1), 014013. (doi: 10.1088/2040-8978/15/1/014013)
2012
Estevâm da Silva, R., Macêdo, R. , Dumelow, T., da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2012) Far-infrared slab lensing and subwavelength imaging in crystal quartz. Physical Review B, 86(15), 155152. (doi: 10.1103/PhysRevB.86.155152)
Macêdo, R. , Dumelow, T. and da Costa, J. A.P. (2012) Beam Shifts of Far-Infrared Radiation on Reflection off the Anisotropic Crystal LiYF4. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LT2A.20. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LT2A.20)
Macêdo, R. , Dumelow, T. and da Costa, J. A.P. (2012) Tunable All-Angle Negative Refraction in Antiferromagnets. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LM3A.5. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LM3A.5)
Macêdo, R. , Sena, M. S., Costa e Silva, J., Chaves, A. and da Costa, J. A. P. (2012) The role of surface roughness on the electron confinement in semiconductor quantum dots. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LM2A.19. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LM2A.19)
2011
Dumelow, T., Rodrigues da Silva, R., Macêdo, R. , da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2011) Negative refraction of far-infrared radiation in quartz. Optics and Photonics News, 22(12), p. 42. (doi: 10.1364/OPN.22.12.000042)
2010
Rodrigues da Silva, R., Macêdo, R. , Dumelow, T., da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2010) Using phonon resonances as a route to all-angle negative refraction in the far-infrared region: the case of crystal quartz. Physical Review Letters, 105(16), 163903. (doi: 10.1103/PhysRevLett.105.163903)
da Silva, R. R., Macedo, R. , Dumelow, T., da Costa, J. A., Honorato, S. B. and Ayala, A. P. (2010) All-Angle Negative Refraction from the Phonon Response in Anisotropic Crystals. In: Latin America Optics and Photonics 2010, Recife, Brazil, 27-30 Sep 2010, WE23. ISBN 9781557529039 (doi: 10.1364/LAOP.2010.WE23)
Articles
Linder, J. W., Lafferty, A. L., Stamps, R. L. and Macêdo, R. (2025) Hyperbolic optics in antiferromagnets with tilted anisotropy. Optics and Laser Technology, 184, 112440. (doi: 10.1016/j.optlastec.2025.112440)
McEleney, C. A., Camley, R. E. and Macedo, R. (2025) Decoherence in spin wave propagation via precursor pulses during signal equilibration. Scientific Reports, 15, 4458. (doi: 10.1038/s41598-025-88799-3)
Camley, R. E., Macedo, R. and Livesey, K. L. (2024) Curie-Weiss behavior and the interaction temperature of magnetic nanoparticle ensembles: Local structure strongly affects the magnetic behavior. Physical Review B, 110(14), 144440. (doi: 10.1103/PhysRevB.110.144440)
Smith, M. A., Lafferty, A. L., Joseph, A., McMaster, M. R., Scott, J. N., Hendren, W. R., Bowman, R. M., Weides, M. P. and Macedo, R. (2024) Observation of room temperature exchange cavity magnon-polaritons in metallic thin films. Advanced Quantum Technologies, 7(8), 2300420. (doi: 10.1002/qute.202300420)
Joseph, A. et al. (2024) The role of excitation vector fields and all-polarisation state control in cavity magnonics. npj Spintronics, 2(59), (doi: 10.1038/s44306-024-00062-z) (PMCID:PMC11618086)
Tyboroski, M., Macedo, R. and Camley, R. E. (2023) Extreme enhancement of nonreciprocal wave propagation in magneto-optical metamaterials. Physical Review Materials, 7(12), 125201. (doi: 10.1103/PhysRevMaterials.7.125201)
Silva, R.L., Silva, R.C., Pereira, A.R., McEleney, C. A. and Macêdo, R. (2023) Fractionalizing biskyrmions using magnons in a ferromagnetic thin film. Journal of Magnetism and Magnetic Materials, 586, 171194. (doi: 10.1016/j.jmmm.2023.171194)
Melnyk, O., Jones, R., Macêdo, R. and Camley, R. E. (2023) New quasiperiodic structures in nematic liquid crystals. Soft Matter, 19, pp. 7644-7654. (doi: 10.1039/D3SM00884C) (PMID:37779452)
Jones, R., Camley, R. E. and Macedo, R. (2023) Controlling asymmetric transmission in layered natural hyperbolic crystals. Optics and Laser Technology, 161, 109210. (doi: 10.1016/j.optlastec.2023.109210)
Wu, X., McEleney, C. A., Shi, Z., González-Jiménez, M. and Macêdo, R. (2022) Asymmetric reflection induced in reciprocal hyperbolic materials. ACS Photonics, 9(8), pp. 2774-2782. (doi: 10.1021/acsphotonics.2c00551) (PMID:35996366) (PMCID:PMC9389604)
Chumak, A. V. et al. (2022) Roadmap on spin-wave computing. IEEE Transactions on Magnetics, 58(6), 0800172. (doi: 10.1109/TMAG.2022.3149664)
Macêdo, R. , Kudinoor, A. S., Livesey, K. L. and Camley, R. E. (2022) Breaking space inversion-symmetry to obtain asymmetric spin-wave excitation in systems with nonuniform magnetic exchange. Advanced Electronic Materials, 8(1), 2100435. (doi: 10.1002/aelm.202100435)
Jones, R., Melnyk, O., Macedo, R. and Camley, R. E. (2021) Vertically stacked soliton-like domain walls in nematic liquid crystals. Advanced Theory and Simulations, 4(11), 2100252. (doi: 10.1002/adts.202100252)
Tyboroski, M., Macêdo, R. and Camley, R. E. (2021) Nonreciprocity in millimeter wave devices using a magnetic grating metamaterial. Physical Review Materials, 5(11), 115201. (doi: 10.1103/PhysRevMaterials.5.115201)
Peng, J., Tang, G., Wang, L., Macêdo, R. , Chen, H. and Ren, J. (2021) Twist-induced near-field thermal switch using nonreciprocal surface magnon-polaritons. ACS Photonics, 8(8), pp. 2183-2189. (doi: 10.1021/acsphotonics.0c01934)
Baity, P. G. et al. (2021) Strong magnon-photon coupling with chip-integrated YIG in the zero-temperature limit. Applied Physics Letters, 119(3), 033502. (doi: 10.1063/5.0054837)
Paterson, G. W. , Macauley, G. M. and Macêdo, R. (2021) Field-driven reversal models in artificial spin ice. Advanced Theory and Simulations, 4(7), 2100109. (doi: 10.1002/adts.202100109)
Melnyk, O., Jones, R., Macedo, R. , Garbovskiy, Y., Hagen, G., Glushchenko, A. V., Spendier, K. and Camley, R. E. (2021) Fast switching dual-frequency nematic liquid crystal tunable filters. ACS Photonics, 8(4), pp. 1222-1231. (doi: 10.1021/acsphotonics.1c00151)
Macêdo, R. , Holland, R. C., Baity, P. G. , McLellan, L. J., Livesey, K. L., Stamps, R. L. , Weides, M. P. and Bozhko, D. A. (2021) Electromagnetic approach to cavity spintronics. Physical Review Applied, 15(2), 024065. (doi: 10.1103/PhysRevApplied.15.024065)
Macêdo, R. , McEleney, C.A., González-Jiménez, M. and Wu, X. (2020) Unidirectional light propagation in natural crystals. Optics and Photonics News, 31(12), p. 53. (doi: 10.1364/OPN.31.12.000053)
Rodrigues Lavor, I., Rabelo da Costa, D., Chaves, A., Farias, G. d. A., Macêdo, R. and Peeters, F. M. (2020) Magnetic field induced vortices in graphene quantum dots. Journal of Physics: Condensed Matter, 32(15), 155501. (doi: 10.1088/1361-648X/ab6463)
Macauley, G. M. , Paterson, G. W. , Li, Y., Macêdo, R. , McVitie, S. and Stamps, R. L. (2020) Tuning magnetic order with geometry: thermalisation and defects in two-dimensional artificial spin ices. Physical Review B, 101, 144403. (doi: 10.1103/PhysRevB.101.144403)
Wolz, T., Stehli, A., Schneider, A., Boventer, I., Macêdo, R. , Ustinov, A. V., Kläui, M. and Weides, M. (2020) Introducing coherent time control to cavity magnon-polariton modes. Communications Physics, 3, 3. (doi: 10.1038/s42005-019-0266-x)
Boventer, I., Dörflinger, C., Wolz, T., Macedo, R. , Lebrun, R., Kläui, M. and Weides, M. (2020) Control of the coupling strength and linewidth of a cavity magnon-polariton. Physical Review Research, 2(1), 013154. (doi: 10.1103/PhysRevResearch.2.013154)
Porro, J. M., Morley, S. A., Venero, D. A., Macêdo, R. , Rosamond, M. C., Linfield, E. H., Stamps, R. L. , Marrows, C. H. and Langridge, S. (2019) Magnetization dynamics of weakly interacting sub-100 nm square artificial spin ices. Scientific Reports, 9, 19967. (doi: 10.1038/s41598-019-56219-y) (PMID:31882867) (PMCID:PMC6934880)
Boventer, I., Kläui, M., Macêdo, R. and Weides, M. (2019) Steering between level repulsion and attraction: broad tunability of two-port driven cavity magnon-polaritons. New Journal of Physics, 21(12), 125001. (doi: 10.1088/1367-2630/ab5c12)
Wu, X., McEleney, C. A., González-Jiménez, M. and Macêdo, R. (2019) Emergent asymmetries and enhancement in the absorption of natural hyperbolic crystals. Optica, 6(12), pp. 1478-1483. (doi: 10.1364/OPTICA.6.001478)
Paterson, G. W. et al. (2019) Heisenberg pseudo-exchange and emergent anisotropies in field-driven pinwheel artificial spin ice. Physical Review B, 100(17), 174410. (doi: 10.1103/PhysRevB.100.174410)
Proskurin, I., Macedo, R. and Stamps, R. L. (2019) Microscopic origin of level attraction for a coupled magnon-photon system in a microwave cavity. New Journal of Physics, 21(9), 095003. (doi: 10.1088/1367-2630/ab3cb7)
Macauley, G. M. , Paterson, G. W. , Li, Y., Macêdo, R. , McVitie, S. and Stamps, R. L. (2019) Ice-rule made manifold: phase transitions, topological defects and manifold restoration in two-dimensional artificial spin systems. arXiv, (Unpublished)
Yarbrough, P. M., Livesey, K. L., Camley, R. E. and Macêdo, R. (2019) Far-infrared reflection from heterostructures made of ultrathin ferromagnetic layers. Physical Review Applied, 12(2), 024004. (doi: 10.1103/PhysRevApplied.12.024004)
Li, Y. et al. (2019) Superferromagnetism and domain-wall topologies in artificial 'pinwheel' spin ice. ACS Nano, 13(2), pp. 2213-2222. (doi: 10.1021/acsnano.8b08884) (PMID:30588800)
Macedo, R. and Camley, R. E. (2019) Engineering terahertz surface magnon-polaritons in hyperbolic antiferromagnets. Physical Review B, 99, 014437. (doi: 10.1103/PhysRevB.99.014437)
Macêdo, R. , Dumelow, T., Camley, R. E. and Stamps, R. L. (2018) Oriented asymmetric wave propagation and refraction bending in hyperbolic media. ACS Photonics, 5(12), pp. 5086-5094. (doi: 10.1021/acsphotonics.8b01402)
Macêdo, R. , Livesey, K. L. and Camley, R. E. (2018) Using magnetic hyperbolic metamaterials as high frequency tunable filters. Applied Physics Letters, 113(12), 121104. (doi: 10.1063/1.5049602)
Macêdo, R. , Macauley, G.M. , Nascimento, F.S. and Stamps, R.L. (2018) Apparent ferromagnetism in the 'pinwheel' artificial spin ice. Physical Review B, 98, 014437. (doi: 10.1103/PhysRevB.98.014437)
Macêdo, R. , Dumelow, T. and Stamps, R. L. (2016) Tunable focusing in natural hyperbolic magnetic media. ACS Photonics, 3(9), pp. 1670-1677. (doi: 10.1021/acsphotonics.6b00321)
Macêdo, R. , Stamps, R. L. and Dumelow, T. (2014) Spin canting induced large nonreciprocal Goos-Hänchen shifts. Optics Express, 22(23), pp. 28467-28478. (doi: 10.1364/OE.22.028467)
Macêdo, R. and Dumelow, T. (2014) Tunable all-angle negative refraction using antiferromagnets. Physical Review B, 89(3), 035135. (doi: 10.1103/PhysRevB.89.035135)
Macêdo, R. , Rodrigues da Silva, R., Dumelow, T. and da Costa, J.A.P. (2014) MgF2 as a material exhibiting all-angle negative refraction and subwavelength imaging due to the phonon response in the far infrared. Optics Communications, 310, pp. 94-99. (doi: 10.1016/j.optcom.2013.07.065)
Macêdo, R. , Costa e Silva, J., Chaves, A., Farias, G.A. and Ferreira, R. (2013) Electric and magnetic field effects on the excitonic properties of elliptic core–multishell quantum wires. Journal of Physics: Condensed Matter, 25(48), 485501. (doi: 10.1088/0953-8984/25/48/485501)
Macêdo, R. , Costa e Silva, J., Chaves, A., Farias, G.A. and Ferreira, R. (2013) Magnetic field induced shell-to-core confinement transition in type-II semiconductor quantum wires. Journal of Applied Physics, 113(15), 153710. (doi: 10.1063/1.4802588)
Macêdo, R. and Dumelow, T. (2013) Beam shifts on reflection of electromagnetic radiation off anisotropic crystals at optic phonon frequencies. Journal of Optics, 15(1), 014013. (doi: 10.1088/2040-8978/15/1/014013)
Estevâm da Silva, R., Macêdo, R. , Dumelow, T., da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2012) Far-infrared slab lensing and subwavelength imaging in crystal quartz. Physical Review B, 86(15), 155152. (doi: 10.1103/PhysRevB.86.155152)
Dumelow, T., Rodrigues da Silva, R., Macêdo, R. , da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2011) Negative refraction of far-infrared radiation in quartz. Optics and Photonics News, 22(12), p. 42. (doi: 10.1364/OPN.22.12.000042)
Rodrigues da Silva, R., Macêdo, R. , Dumelow, T., da Costa, J.A.P., Honorato, S.B. and Ayala, A.P. (2010) Using phonon resonances as a route to all-angle negative refraction in the far-infrared region: the case of crystal quartz. Physical Review Letters, 105(16), 163903. (doi: 10.1103/PhysRevLett.105.163903)
Book Sections
Macedo, R. (2021) The 2021 magnetic hyperbolic polaritons roadmap. In: Camley, Robert E. and Stamps, Robert L. (eds.) Solid State Physics. Volume 72. Academic Press: Cambridge, MA, pp. 83-91. ISBN 9780323915175 (doi: 10.1016/bs.ssp.2021.08.004)
Macedo, R. and Stamps, R. L. (2020) Electromagnetic waves in canted magnets. In: Donahue, Michael (ed.) Compendium on Electromagnetic Analysis From Electrostatics to Photonics: Fundamentals and Applications for Physicists and Engineers. World Scientific, pp. 231-261. ISBN 9789813270268 (doi: 10.1142/9789813270268_0007)
Macêdo, R. (2017) Tunable hyperbolic media: magnon-polaritons in canted antiferromagnets. In: Camley, Robert E. and Stamps, Robert L. (eds.) Solid State Physics. Elsevier, pp. 91-155. ISBN 9780128119914 (doi: 10.1016/bs.ssp.2017.10.001)
Edited Books
Stamps, R. L., Camley, R. E. and Macedo, R. (Eds.) (2024) Solid State Physics. Volume 75. Academic Press. ISBN 9780443297786
Macedo, R. and Stamps, R. L. (Eds.) (2023) Solid State Physics. Volume 74. Academic Press. ISBN 9780443137136
Macedo, R. (Ed.) (2022) Solid State Physics. Volume 73. Academic Press. ISBN 9780323989114
Conference or Workshop Item
Baity, P. G. et al. (2021) Strong Magnon-Photon Coupling On-Chip for YIG in the Zero-Temperature Limit. American Physical Society March Meeting 2021, Online, 15-19 Mar 2021.
Conference Proceedings
Macêdo, R. , Dumelow, T. and Stamps, R.L. (2015) Tunable Magneto-Optical Effects in Antiferromagnetic Structures. In: 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), Oxford, UK, 7-12 Sept 2015, pp. 454-456. ISBN 9781479978366 (doi: 10.1109/MetaMaterials.2015.7342485)
Macêdo, R. , Dumelow, T. and da Costa, J. A.P. (2012) Beam Shifts of Far-Infrared Radiation on Reflection off the Anisotropic Crystal LiYF4. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LT2A.20. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LT2A.20)
Macêdo, R. , Dumelow, T. and da Costa, J. A.P. (2012) Tunable All-Angle Negative Refraction in Antiferromagnets. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LM3A.5. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LM3A.5)
Macêdo, R. , Sena, M. S., Costa e Silva, J., Chaves, A. and da Costa, J. A. P. (2012) The role of surface roughness on the electron confinement in semiconductor quantum dots. In: Latin America Optics and Photonics Conference 2012, São Sebastião, Brazil, 10-13 Nov 2012, LM2A.19. ISBN 9781557529589 (doi: 10.1364/LAOP.2012.LM2A.19)
da Silva, R. R., Macedo, R. , Dumelow, T., da Costa, J. A., Honorato, S. B. and Ayala, A. P. (2010) All-Angle Negative Refraction from the Phonon Response in Anisotropic Crystals. In: Latin America Optics and Photonics 2010, Recife, Brazil, 27-30 Sep 2010, WE23. ISBN 9781557529039 (doi: 10.1364/LAOP.2010.WE23)
Grants
Current research funding:
- Opto-Spintronic interfaces for next generation quantum networks - (SpinNet)
Principal investigator: Dr. Rair Macedo
Funding source: EPSRC New Horizons Highly Speculative ICT (EP/X017850/1)
Award: £250,000
Start date: 01/04/2023; End date: 31/03/2025
- Empowering Practical Interfacing of Quantum Computing (EPIQC)
Co-investigator
Funding source: EPSRC (EP/W032627/1)
Award: £3,000,000
Start date: 30/04/2022; End date: 29/04/2026
Recently completed grants:
- Synthetic magnets for signal processing: designing wave phenomena through micro- and nano-scale structuring
Principal investigator: Dr. Rair Macedo
Funding source: The University of Glasgow (Reward for Excellence, Colege of Science and Engineering)
Award: £10,000
Start date: 01/03/2021; End date: 31/07/2021
- Advanced magnetic media for next generation thz multifunctional devices
Principal investigator: Dr. Rair Macedo
Funding source: The Leverhulme Trust (300947-01) and The University of Glasgow (LKAS - 200584-01)
Award: £189,881
Start date: 01/03/18; End date: 28/02/2021
- Erasmus+
Principal investigator: Dr. Rair Macedo
End date: 28/02/2021
- Vacation Scholarship
Principal investigator: Dr. Rair Macedo; Student Investigator: Connor Maclean
Funding source: The Carnegie Trust for the Universities of Scotland (308264-00)
End date: 2020
Principal investigator: Dr. Rair Macedo; Student Investigator: Cameron McEleney
Funding source: The Carnegie Trust for the Universities of Scotland (308264-00)
End date: 2019
- Vacation Internship: Study of light interactions with magnetic systems
Principal investigator: Dr. Rair Macedo; Student Investigator: Rory Holland
Funding source: Engineering and Physical Sciences Research Council (EPSRC)
End date: 2019
- Postdoctoral and Early Career Research Exchange Program
Principal investigator: Dr. Rair Macedo
Funding source: Scottish Universities Physics Alliance (SUPA)
End date: 2018
- Lord Kelvin Postgraduate Scholarship
Principal investigator: Dr. Rair Macedo
Funding source: The University of Glasgow
Start Date: 2015; End date: 2016
Supervision
Researchers:
- Dr. Gary Paterson - Research Associate
- Dr. Luke McLellan - Research Associate
- Rory Holland - Project Assistant
- Adam Lafferty - Project Assistant
Ph.D. Students:
- Cameron McEleney - University of Glasgow (EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage)
- Katherine Stevens - University of Glasgow (EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage)
- Mark Cunningham - University of Glasgow (EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage)
- Mawgan Smith - University of Glasgow (EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage)
- Reed Jones - University of Colorado at Colorado Springs (Co-supervision with Prof. Robert E Camley)
- Anna Casey - Queen's University Belfast (EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage, 2nd Supervisor)
- Vandeilma Bezerra - Universidade do Estado do Rio Grande do Norte (Co-Supervision with Prof. Thomas Dumelow)
- Cunningham, Mark
Photonic integration and advanced data storage - Joseph, Alban
Controlling temporal spin dynamics in a magnetic network - Karar, Wridhdhisom
Experimental realization of many-body coupling schemes with superconducting quantum hardware
Former Students:
- Gavin Macauley - (PhD) University of Glasgow (Funded by The Carnegie Trust for the Universities of Scotland - Co-supervision with Prof. Stephen McVitie)
- Connor Maclean (The Carnegie Trust for the Universities of Scotland Vacation Scholar)
- Cameron McEleney (The Carnegie Trust for the Universities of Scotland Vacation Scholar)
- Rory Holland (EPSRC Vacation Intern)
- Niall Gray (B.Sc.)
- Yingchao Yuan (MSc)
Teaching
Undergraduate Courses
Level 2 (SCQF level 8):
- Engineering Electromagnetics 2 (ENG2031)
Level 4 (SCQF level 10):
- Quantum Electronic Devices 4 (ENG4099)
Postgraduate Courses:
Level 5 (SCQF level 11):
- Quantum Electronic Devices M (ENG5261)
Past Teaching:
Level 1 (SCQF level 7):
- Engineering Mathematics 1 (ENG1063)
Level 5 (SCQF level 11):
Research datasets
2024
Joseph, A., Nair, J., Smith, M., Holland, R., McLellan, L., Boventer, I., Wolz, T., Bozhko, D., Flebus, B., Weides, M. and Macedo, R. (2024) The role of excitation vector fields and all-polarisation state control of cavity magnonics. [Data Collection]
2019
Li, Y., Paterson, G., Macauley, G., Nascimento, F. S., Ferguson, C., Morley, S. A., Rosamond, M. C., Linfield, E. H., MacLaren, D. , Macedo, R. , Marrows, C. H., McVitie, S. and Stamps, R. (2019) Superferromagnetism and Domain-Wall Topologies in Artificial 'Pinwheel' Spin Ice. [Data Collection]
Additional information
Public Engagement (advancing diversity, equity, and inclusion):
I currently serve as:
- EDI champion for the EPSRC and SFI CDT in Photonic Integration & Advanced Data Storage;
- Steering board member for Opening Up Photonics; and
- Chair of the James Watt School of Engineering EDI committee (formely Culture Lead).
In order to help bridge the gap between science and disadvantaged groups, not only social and financial, but also racial, sexual orientation, gender and any other minority group, I developed a series of high school activities, including seminars and demonstrations, which I delivered to schools in rural and remote areas of South America this last summer.
These activities target children at an early age when they are just starting to study scientific subjects such as physics, chemistry and biology. My main focus was to motivate children from an underprivileged background to get into STEM and I worked with over 150 children.
The overarching goal of these initiatives was to help reduce barriers in education or research in science for underrepresented and/or economically disadvantaged groups.
More recently, as part of the outreach activities within the School of Engineering, we have opened up out teaching labs to primary school pupils from Glasgow as an opportunity for them to learn more about electronics and its applications:
