中国物理B ›› 2012, Vol. 21 ›› Issue (5): 57501-057501.doi: 10.1088/1674-1056/21/5/057501

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The crystal structure, magnetism, and colossal magnetoresistance of Y2CrS4

刘荣灯1 2,刘蕴韬1,何伦华2,王志翠2,陈东风1,王芳卫2   

  1. 1. China Institute of Atomic Energy, Beijing 102413, China;
    2. State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2012-01-05 修回日期:2012-04-27 出版日期:2012-04-01 发布日期:2012-04-01
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB833102) and the National Natural Science Foundation of China (Grant No. 10974244)

The crystal structure, magnetism, and colossal magnetoresistance of Y2CrS4

Liu Rong-Deng(刘荣灯)a)b), Liu Yun-Tao(刘蕴韬)a), He Lun-Hua(何伦华)b), Wang Zhi-Cui(王志翠)b), Chen Dong-Feng(陈东风)a), and Wang Fang-Wei(王芳卫)b)†   

  1. a. China Institute of Atomic Energy, Beijing 102413, China;
    b. State Key Laboratory of Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2012-01-05 Revised:2012-04-27 Online:2012-04-01 Published:2012-04-01
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB833102) and the National Natural Science Foundation of China (Grant No. 10974244)

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摘要： Ternary yttrium chromium sulfide, Y2CrS4, prepared by the solid-state reaction of Y2S3, Cr, and S, was found to exhibit an antiferromagnetic transition at about 64 K. The X-ray diffraction pattern at 300 K was refined with space group Pca21, and the structure parameters were determined to be a=12.51 Å, b=7.53 Å, and c=12.49 Å. We investigated the magnetotransport properties, and observed negative colossal magnetoresistance reaching up to 2.5? 104% in the semiconducting compound of Y2CrS4.

关键词: magnetoresistance, crystal structure, magnetism

Abstract: Ternary yttrium chromium sulfide, Y2CrS4, prepared by the solid-state reaction of Y2S3, Cr, and S, was found to exhibit an antiferromagnetic transition at about 64 K. The X-ray diffraction pattern at 300 K was refined with space group Pca21, and the structure parameters were determined to be a=12.51 Å, b=7.53 Å, and c=12.49 Å. We investigated the magnetotransport properties, and observed negative colossal magnetoresistance reaching up to 2.5$\times$104% in the semiconducting compound of Y2CrS4.

Key words: magnetoresistance, crystal structure, magnetism

中图分类号:  (Colossal magnetoresistance)

  • 75.47.Gk
61.50.-f (Structure of bulk crystals) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects)