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

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

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)30-33
Number of pages4
JournalPhysica B: Condensed Matter
Volume294-295
DOIs
Publication statusPublished - 2001 Jan

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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