Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?

The Jahn-Teller effect is one of the most fundamental phenomena important not only for physics but also for chemistry and material science. Solving the Jahn-Teller problem and taking into account strong electron correlations we show that quantum entanglement of the spin and orbital degrees of freedo...

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Autores principales: Sergey V. Streltsov, Daniel I. Khomskii
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Lenguaje:EN
Publicado: American Physical Society 2020
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Acceso en línea:https://doaj.org/article/71d5d8d337f24717a306ae1d3cc20ec7
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spelling oai:doaj.org-article:71d5d8d337f24717a306ae1d3cc20ec72021-12-02T12:27:14ZJahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?10.1103/PhysRevX.10.0310432160-3308https://doaj.org/article/71d5d8d337f24717a306ae1d3cc20ec72020-08-01T00:00:00Zhttp://doi.org/10.1103/PhysRevX.10.031043http://doi.org/10.1103/PhysRevX.10.031043https://doaj.org/toc/2160-3308The Jahn-Teller effect is one of the most fundamental phenomena important not only for physics but also for chemistry and material science. Solving the Jahn-Teller problem and taking into account strong electron correlations we show that quantum entanglement of the spin and orbital degrees of freedom via spin-orbit coupling strongly affects this effect. Depending on the number of d electrons, it may quench (electronic configurations t_{2g}^{2}, t_{2g}^{4}, and t_{2g}^{5}), partially suppress (t_{2g}^{1}), or, in contrast, induce (t_{2g}^{3}) Jahn-Teller distortions. Moreover, in certain situations, interplay between the Jahn-Teller effect and spin-orbit coupling promotes formation of the “Mexican hat” energy surface facilitating various quantum phenomena.Sergey V. StreltsovDaniel I. KhomskiiAmerican Physical SocietyarticlePhysicsQC1-999ENPhysical Review X, Vol 10, Iss 3, p 031043 (2020)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
spellingShingle Physics
QC1-999
Sergey V. Streltsov
Daniel I. Khomskii
Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
description The Jahn-Teller effect is one of the most fundamental phenomena important not only for physics but also for chemistry and material science. Solving the Jahn-Teller problem and taking into account strong electron correlations we show that quantum entanglement of the spin and orbital degrees of freedom via spin-orbit coupling strongly affects this effect. Depending on the number of d electrons, it may quench (electronic configurations t_{2g}^{2}, t_{2g}^{4}, and t_{2g}^{5}), partially suppress (t_{2g}^{1}), or, in contrast, induce (t_{2g}^{3}) Jahn-Teller distortions. Moreover, in certain situations, interplay between the Jahn-Teller effect and spin-orbit coupling promotes formation of the “Mexican hat” energy surface facilitating various quantum phenomena.
format article
author Sergey V. Streltsov
Daniel I. Khomskii
author_facet Sergey V. Streltsov
Daniel I. Khomskii
author_sort Sergey V. Streltsov
title Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
title_short Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
title_full Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
title_fullStr Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
title_full_unstemmed Jahn-Teller Effect and Spin-Orbit Coupling: Friends or Foes?
title_sort jahn-teller effect and spin-orbit coupling: friends or foes?
publisher American Physical Society
publishDate 2020
url https://doaj.org/article/71d5d8d337f24717a306ae1d3cc20ec7
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