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The exchange biaslike effect in tetrahedral spinels Cu1−xZnxCr2O4(x=0.1,0.3)

J. Appl. Phys. 105, 07A719 (2009); doi:10.1063/1.3073846

Published 25 February 2009

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L. Q. Yan,1 W. Ren,2 J. Shen,1 Z. H. Sun,1 and F. W. Wang1
1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
2Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong and Physics Department, University of Arkansas, Fayetteville, Arkansas 72701, USA
Exchange biaslike phenomenon is observed in the Zn doped spinel polycrystalline CuCr2O4. The magnetic hysteresis loop shifts in both horizontal and vertical directions at 5 K after the samples are cooled down to 5 K in a magnetic field. The nature of this magnetic anisotropy arises from the freezing properties of the local anisotropy in the cluster glass system. The magnetic shifts along both directions can be observed directly under the principle that the spins of a cluster are frozen in random orientations upon zero field, and aligned to the field direction upon field cooling. ©2009 American Institute of Physics
History: Presented 11 November 2008; received 2 October 2008; accepted 2 December 2008; published 25 February 2009
Permalink: http://link.aip.org/link/?JAPIAU/105/07A719/1
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KEYWORDS and PACS

Keywords
PACS
  • 75.60.Ej
    Magnetization curves, hysteresis, Barkhausen and related effects
  • 75.30.Sg
    Magnetocaloric effect, magnetic cooling (magnetically ordered materials)
  • 75.30.Gw
    Magnetic anisotropy
  • YEAR: 2009

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ISSN:
0021-8979 (print)   1089-7550 (online)
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