MISC

1990年

Magnetic properties of CoCl2-graphite intercalation compounds under pressure

Physical Review B
  • J. T. Nicholls
  • ,
  • C. Murayama
  • ,
  • H. Takahashi
  • ,
  • N. Mori
  • ,
  • T. Tamegai
  • ,
  • Y. Iye
  • ,
  • G. Dresselhaus

41
8
開始ページ
4953
終了ページ
4960
記述言語
英語
掲載種別
DOI
10.1103/PhysRevB.41.4953

We report ac magnetic susceptibility (=-i) measurements of stage-1 and stage-2 CoCl2-graphite intercalation compounds (GICs) carried out under hydrostatic pressures of 015 kbar. For stage-1 CoCl2-GICs, it is found that the three-dimensional ordering temperature Tc2=TN=9.7 K, where the ferromagnetic planes of Co2+ spins become ordered into an antiferromagnetic arrangement along the c axis, shifts to a higher temperature with increasing pressure. Additionally, the transition field Ht, measured when a magnetic field is applied in the x-y plane, shifts to a higher field value with increasing pressure. From the increase of the transition field, we can estimate the pressure dependence of the antiferromagnetic interlayer coupling J. For stage-2 CoCl2-GICs, it is found from measurements of and that the transition temperatures Tcl and Tcu increase with applied pressure. © 1990 The American Physical Society.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.41.4953
ID情報
  • DOI : 10.1103/PhysRevB.41.4953
  • ISSN : 0163-1829
  • SCOPUS ID : 51149215310

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