Effect of pressure on the magnetic properties of CrB2

Автор(и)

  • G.E. Grechnev B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • A.S. Panfilov B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine
  • 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 I. Frantsevich Institute for Problems of Material Science, National Academy of Sciences, 3 Krzhyzhanovsky Str., Kiev 03680, Ukraine
  • A.B. Lyashchenko I. Frantsevich Institute for Problems of Material Science, National Academy of Sciences, 3 Krzhyzhanovsky Str., Kiev 03680, Ukraine
  • A.N. Vasiliev Department of Low Temperature Physics and Superconductivity, Physics Faculty, M.V. Lomonosov Moscow State University, Moscow 119899, Russia

DOI:

https://doi.org/10.1063/1.3168639

Ключові слова:

CrB2, high pressure, magnetovolume effect, electronic structure.

Анотація

Magnetic susceptibility c of the itinerant antiferromagnet CrB2 with TN ≃ 87K was studied as a function of the hydrostatic pressure up to 2 kbar at fixed temperatures 78 and 300 K. The pressure effect on c 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 c and their volume dependence are calculated ab initio within the local spin density approximation, and appeared to be in close agreement with the experimental data.

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Опубліковано

2009-05-28

Як цитувати

(1)
Grechnev, G.; Panfilov, A.; Fedorchenko, A.; Filippov, V.; Lyashchenko, A.; Vasiliev, A. Effect of Pressure on the Magnetic Properties of CrB2. Fiz. Nizk. Temp. 2009, 35, 677-682.

Номер

Том 35 № 7 (2009)

Розділ

Низькотемпературний магнетизм

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Дані завантаження ще не доступні.

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