Weak ferromagnetism in distorted T′-phase cuprates

H. M. Luo, S. Y. Ding, Y. Y. Hsu, B. N. Lin, H. C. Ku

研究成果: 雜誌貢獻文章

3 引文 斯高帕斯(Scopus)

摘要

Copper weak ferromagnetic or canted-antiferromagnetic order in distorted T′-phase (orthorhombic O′-phase) Gd2CuO4 and related Gd2-xRxCuO4 (R = rare earth, Bi, or Bi/Ce) cuprates is reported. The weak ferromagnetism is the result of the small oxygen distortion in otherwise square CuO2 plane. Powder X-ray Rietveld refinement analysis shows that the oxygen distortion angle α(Cu-O-Cu) is directly related to the ionic size in Gd2CuO4-type cuprates. The correlation between the crystal symmetry, antiferromagnetism and weak ferromagnetism in T′-phase cuprates is discussed.

原文英語
頁(從 - 到)91-96
頁數6
期刊Unknown Journal
351
發行號2
DOIs
出版狀態已發佈 - 2001 三月 15

ASJC Scopus subject areas

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

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