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Effect of pressure on the magnetic properties of CrB2

Low Temp. Phys. 35, 531 (2009); doi:10.1063/1.3168639

Issue Date: July 2009

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G. E. Grechnev, A. S. Panfilov, and A. V. Fedorchenko
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine

V. B. Filippov and A. B. Lyashchenko
I. Frantsevich Institute for Problems of Material Science, National Academy of Sciences, 3 Krzhyzhanovsky St., Kiev 03680, Ukraine

A. N. Vasiliev
Department of Low Temperature Physics and Superconductivity, Physics Faculty, M. V. Lomonosov Moscow State University, Moscow 119899, Russia
The magnetic susceptibility chi of the itinerant antiferromagnet CrB2 with TN~=87  K is studied as a function of the hydrostatic pressure up to 2  kbar at fixed temperatures 78 and 300  K. The pressure effect on chi is found to be negative in sign and weakly dependent on the magnetic state of the compound. In addition, the measured pressure dependence of the Néel temperature, dTN/dP=0.1±0.1  K/kbar, is roughly two orders of magnitude smaller than the corresponding value for the pure chromium. The main contributions to chi and their volume dependence are calculated ab initio within the local spin density approximation, and they turn out to be in close agreement with the experimental data. ©2009 American Institute of Physics
History: Submitted 26 March 2009
Permalink: http://link.aip.org/link/?LTPHEG/35/531/1
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KEYWORDS and PACS

Keywords
PACS
  • 62.50.-p
    High-pressure effects in solids and liquids
  • 75.25.+z
    Spin arrangements in magnetically ordered materials
  • 75.30.Kz
    Magnetic phase boundaries
  • 75.10.Lp
    Band and itinerant models (magnetism)
  • 75.50.Ee
    Antiferromagnetics
  • 75.30.Cr
    Saturation moments and magnetic susceptibilities in magnetically ordered materials
  • YEAR: 2009

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1063-777X (print)   1090-6517 (online)
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