Universität zu Köln

Streltsov, Sergey, V, Temnikov, Fedor, V, Kugel, Kliment, I and Khomskii, Daniel, I (2022). Interplay of the Jahn-Teller effect and spin-orbit coupling: The case of trigonal vibrations. Phys. Rev. B, 105 (20). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

We study an interplay between the orbital degeneracy and the spin-orbit coupling (SOC) giving rise to spinorbital entangled states in concentrated systems (cooperative Jahn-Teller [JT] effect). As a specific example, we analyze the interaction of electrons occupying triply degenerate single-ion t(2g) levels with trigonal vibrations (the t circle times T problem). A more general problem of the electron-lattice interaction involving both tetragonal and trigonal vibrations is also considered. It is shown that the result of such interaction crucially depends on the occupation of t(2g) levels leading to either the suppression or the enhancement of the JT effect by the SOC.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Streltsov, Sergey, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Temnikov, Fedor, V UNSPECIFIED UNSPECIFIED UNSPECIFIED Kugel, Kliment, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Khomskii, Daniel, I UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-682900
DOI:	10.1103/PhysRevB.105.205142
Journal or Publication Title:	Phys. Rev. B
Volume:	105
Number:	20
Date:	2022
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language STATE Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68290