Electron correlation and dynamical Jahn-Teller effect in an orbitally degenerate system

Joji Nasu, Sumio Ishihara

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Motivated by recent experiments on Ba3CuSb2O9, we study the dynamical Jahn-Teller effect in a spin-orbital coupled system. We analyze a low-energy model Hamiltonian which includes the superexchange-type interaction and the Jahn-Teller interaction by using a combined method of the mean-field approximation and the quantum Monte-Carlo simulation. We find that magnetic orders do not appear in a wide parameter region and that the spin-dimer state with an orbital order is realized. The orbital order is strongly suppressed by the dynamical Jahn-Teller effect.

本文言語English
ページ(範囲)2179-2183
ページ数5
ジャーナルJournal of the Korean Physical Society
62
12
DOI
出版ステータスPublished - 2013 7月

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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