High-field magnetization of an S = 1/2 F-F-AF-AF tetramer chain

M. Hagiwara, Y. Narumi, K. Minami, K. Kindo

研究成果: Article査読

11 被引用数 (Scopus)

抄録

We performed magnetic susceptibility and high-field magnetization measurements on a powder sample of a copper tetramer chain compound Cu(3-Clpy)2(N3)2 (3-Clpy = 3-Chloropyridine). Magnetic susceptibility (χ) times temperature (T) decreases gradually with decreasing temperature from 300 K and increases steeply after reaching a minimum at 10 K. The high-field magnetization of this compound at 1.3 K shows a plateau at a half of the saturation magnetization up to 250 kOe and a successive abrupt increase near the saturation field. We compare these experimental data with those calculated for the S = 1/2 ferromagnetic-ferromagnetic-antiferromagnetic-antiferromagnetic (F-F-AF-AF) tetramer chain and obtained fairly good agreement between them when the ratio of the ferromagnetic exchange constant to the antiferromagnetic one is -0.5. The abrupt increase of magnetization near the saturation field is discussed.

本文言語English
ページ(範囲)30-33
ページ数4
ジャーナルPhysica B: Condensed Matter
294-295
DOI
出版ステータスPublished - 2001 1月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 電子工学および電気工学

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