Semiclassical approximation in the magnetic problem of exchange-coupled mixed valence clusters

J. J. Borrás-Almenar, E. Coronado, H. M. Kishenevsky, B. S. Tsukerblat

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21 Scopus citations

Abstract

The frameworks of the applicability of the semiclassical adiabatic approach suggested by Borrás-Almenar, Coronado and Tsukerblat to the magnetic problem of mixed valence clusters are considered in a model taking into account magnetic exchange, double exchange and vibronic interaction. The results for the quantum-mechanical and semicalssical calculation of the temperature-variable magnetic moments are compared with those within the scope of the semiclassical approximation for the dimeric d1-d2 clusters and trimeric d1-d1-d2 systems with partial delocalization over a pair of ions. The semiclassical approach describes with high accuracy the temperature dependencies of the magnetic moments. Cases of the inapplicability of the semiclassical approach are pointed out.

Original languageEnglish
Pages (from-to)525-530
Number of pages6
JournalChemical Physics Letters
Volume217
Issue number5-6
DOIs
StatePublished - 28 Jan 1994
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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