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  • 标题:Large spontaneous exchange bias in a weak ferromagnet Pb6Ni9(TeO6)5
  • 本地全文:下载
  • 作者:B. Koteswararao ; Tanmoy Chakrabarty ; Tathamay Basu
  • 期刊名称:Scientific Reports
  • 电子版ISSN:2045-2322
  • 出版年度:2017
  • 卷号:7
  • 期号:1
  • DOI:10.1038/s41598-017-09056-w
  • 语种:English
  • 出版社:Springer Nature
  • 摘要:We report the magnetic and dielectric behavior of Pb6Ni9(TeO6)5, a new compound comprising the honeycomb-like layers of S = 1 spins, through detailed structural, magnetic and dielectric investigation. An antiferromagnetic-type transition at 25 K (T N ) with weak-ferromagnetic behavior is revealed. Interestingly, a large value of coercive field of 1.32 T at 2 K is observed. The isothermal magnetization after zero-field-cooled condition, it exhibits the presence of large spontaneous exchange bias (SEB) with a magnitude of 0.19 T at 2 K; which is rare in single bulk materials, especially without external doping. The value of |H EB| further enhances to 0.24 T under 16 T field-cooled condition, confirming the presence of large exchange bias in the material.
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