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Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide
The physics of mutual interaction of phonon quasiparticles with electronic spin degrees of freedom, leading to unusual transport phenomena of spin and heat, has been a subject of continuing interests for decades. Despite its pivotal role in transport processes, the effect of spin-phonon coupling on...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9304033/ https://www.ncbi.nlm.nih.gov/pubmed/35858352 http://dx.doi.org/10.1073/pnas.2120553119 |
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author | Sun, Qiyang Wei, Bin Su, Yaokun Smith, Hillary Lin, Jiao Y. Y. Abernathy, Douglas L. Li, Chen |
author_facet | Sun, Qiyang Wei, Bin Su, Yaokun Smith, Hillary Lin, Jiao Y. Y. Abernathy, Douglas L. Li, Chen |
author_sort | Sun, Qiyang |
collection | PubMed |
description | The physics of mutual interaction of phonon quasiparticles with electronic spin degrees of freedom, leading to unusual transport phenomena of spin and heat, has been a subject of continuing interests for decades. Despite its pivotal role in transport processes, the effect of spin-phonon coupling on the phonon system, especially acoustic phonon properties, has so far been elusive. By means of inelastic neutron scattering and first-principles calculations, anomalous scattering spectral intensity from acoustic phonons was identified in the exemplary collinear antiferromagnetic nickel (II) oxide, unveiling strong spin-lattice correlations that renormalize the polarization of acoustic phonon. In particular, a clear magnetic scattering signature of the measured neutron scattering intensity from acoustic phonons is demonstrated by its momentum transfer and temperature dependences. The anomalous scattering intensity is successfully modeled with a modified magneto-vibrational scattering cross-section, suggesting the presence of spin precession driven by phonon. The renormalization of phonon eigenvector is indicated by the observed “geometry-forbidden” neutron scattering intensity from transverse acoustic phonon. Importantly, the eigenvector renormalization cannot be explained by magnetostriction but instead, it could result from the coupling between phonon and local magnetization of ions. |
format | Online Article Text |
id | pubmed-9304033 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-93040332023-01-12 Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide Sun, Qiyang Wei, Bin Su, Yaokun Smith, Hillary Lin, Jiao Y. Y. Abernathy, Douglas L. Li, Chen Proc Natl Acad Sci U S A Physical Sciences The physics of mutual interaction of phonon quasiparticles with electronic spin degrees of freedom, leading to unusual transport phenomena of spin and heat, has been a subject of continuing interests for decades. Despite its pivotal role in transport processes, the effect of spin-phonon coupling on the phonon system, especially acoustic phonon properties, has so far been elusive. By means of inelastic neutron scattering and first-principles calculations, anomalous scattering spectral intensity from acoustic phonons was identified in the exemplary collinear antiferromagnetic nickel (II) oxide, unveiling strong spin-lattice correlations that renormalize the polarization of acoustic phonon. In particular, a clear magnetic scattering signature of the measured neutron scattering intensity from acoustic phonons is demonstrated by its momentum transfer and temperature dependences. The anomalous scattering intensity is successfully modeled with a modified magneto-vibrational scattering cross-section, suggesting the presence of spin precession driven by phonon. The renormalization of phonon eigenvector is indicated by the observed “geometry-forbidden” neutron scattering intensity from transverse acoustic phonon. Importantly, the eigenvector renormalization cannot be explained by magnetostriction but instead, it could result from the coupling between phonon and local magnetization of ions. National Academy of Sciences 2022-07-12 2022-07-19 /pmc/articles/PMC9304033/ /pubmed/35858352 http://dx.doi.org/10.1073/pnas.2120553119 Text en Copyright © 2022 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
spellingShingle | Physical Sciences Sun, Qiyang Wei, Bin Su, Yaokun Smith, Hillary Lin, Jiao Y. Y. Abernathy, Douglas L. Li, Chen Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title | Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title_full | Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title_fullStr | Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title_full_unstemmed | Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title_short | Mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (II) oxide |
title_sort | mutual spin-phonon driving effects and phonon eigenvector renormalization in nickel (ii) oxide |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9304033/ https://www.ncbi.nlm.nih.gov/pubmed/35858352 http://dx.doi.org/10.1073/pnas.2120553119 |
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