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

Research output: Contribution to journal › Article › peer-review

20 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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title = "Thermodynamic properties of dimeric mixed-valence compounds in a dynamic model of intermediate vibronic coupling",

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 - Tsukerblat, B. S.

AU - Palii, A. V.

AU - Gamurar, V. Ya

AU - Berengolts, A. S.

AU - Kishinevsky, H. M.

PY - 1991/9/9

Y1 - 1991/9/9

N2 - 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.

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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U2 - 10.1016/0375-9601(91)90994-J

DO - 10.1016/0375-9601(91)90994-J

M3 - Article

AN - SCOPUS:4243283921

SN - 0375-9601

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JO - Physics Letters, Section A: General, Atomic and Solid State Physics

JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 6-7

ER -

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

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