Commensurate and Incommensurate States of a Spin-Peierls System in a Magnetic Field

Isao Harada

研究成果査読

39 被引用数 (Scopus)

抄録

Commensurate and incommensurate states of a Heisenberg spin-Peierls system in a magnetic field are studied within the mean-field approximation. Free energy, order parameter and magnetization are calculated numerically by taking account of the effect of all the accompanying harmonics. In particular, it is found that at low temperatures the field lowers the free energy of the incommensurate states and results in the commensurate to incommensurate phase transition. The nature of this transition is discussed. It is also found that the incommensurate to normal phase transition temperature behaves anomalously in a strong field. The resultant phase diagram is compared with the experimental data on TTF-CuBDT.

本文言語English
ページ(範囲)1737-1744
ページ数8
ジャーナルjournal of the physical society of japan
51
6
DOI
出版ステータスPublished - 1982
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学一般

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