Thermodynamic properties of dimeric mixed-valence compounds in a dynamic model of intermediate vibronic coupling

B. S. Tsukerblat; A. V. Palii; V. Ya Gamurar; A. S. Berengolts; H. M. Kishinevsky

doi:10.1016/0375-9601(91)90994-J

Thermodynamic properties of dimeric mixed-valence compounds in a dynamic model of intermediate vibronic coupling

B. S. Tsukerblat, A. V. Palii, V. Ya Gamurar, A. S. Berengolts, H. M. Kishinevsky

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19 Scopus citations

Abstract

An intermediate coupling basis set is applied to the Jahn-Teller problem of a mixed-valence cluster. The vibronic magnetic moments and heat capacity are calculated. Strong vibronic coupling favors the anti-ferromagnetic spin alignment so the value of ground state spin proves to be the result of competition between the double exchange, Heisenberg-type exchange and vibronic interaction. In some cases the adiabatic approach is shown to be inadequate for the ground state description.

Original language	English
Pages (from-to)	341-344
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	158
Issue number	6-7
DOIs	https://doi.org/10.1016/0375-9601(91)90994-J
State	Published - 9 Sep 1991
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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abstract = "An intermediate coupling basis set is applied to the Jahn-Teller problem of a mixed-valence cluster. The vibronic magnetic moments and heat capacity are calculated. Strong vibronic coupling favors the anti-ferromagnetic spin alignment so the value of ground state spin proves to be the result of competition between the double exchange, Heisenberg-type exchange and vibronic interaction. In some cases the adiabatic approach is shown to be inadequate for the ground state description.",

author = "Tsukerblat, {B. S.} and Palii, {A. V.} and Gamurar, {V. Ya} and Berengolts, {A. S.} and Kishinevsky, {H. M.}",

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AU - Palii, A. V.

AU - Gamurar, V. Ya

AU - Berengolts, A. S.

AU - Kishinevsky, H. M.

PY - 1991/9/9

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AB - An intermediate coupling basis set is applied to the Jahn-Teller problem of a mixed-valence cluster. The vibronic magnetic moments and heat capacity are calculated. Strong vibronic coupling favors the anti-ferromagnetic spin alignment so the value of ground state spin proves to be the result of competition between the double exchange, Heisenberg-type exchange and vibronic interaction. In some cases the adiabatic approach is shown to be inadequate for the ground state description.

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Thermodynamic properties of dimeric mixed-valence compounds in a dynamic model of intermediate vibronic coupling

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