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2009 | 115 | 1 | 185-187
Article title

Ab initio Calculations of the Magnetocrystalline Anisotropy in UAuSb_2 Ferromagnet

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Languages of publication
EN
Abstracts
EN
The paper presents results of ab initio calculations of the magnetocrystalline anisotropy of UAuSb_2, a strongly anisotropic ferromagnet below 36 K. The total energy of the unit cell of UAuSb_2 was calculated by two methods: the full potential linear muffin-tin orbitals method and by the full-potential local-orbital minimum basis band structure code. The computations were done for the following quantization directions in the tetragonal unit cell (orientations of the magnetization vector M): [010], [001], [011], [110], [111], and [11½] . The anisotropic contribution to the total energy for various directions were fitted by the least-squares procedure to the expression for the magnetocrystalline energy suitable for tetragonal symmetry E_A=K(α_x^4 +α_y^4)+ K_2α_z^2, where (α_x,α_y,α_z) is a unit vector along the direction of magnetization M. The band structure calculations predict the direction [111] as the easy axis of magnetization. Values of the calculated anisotropy constants at T=0 are provided.
Keywords
EN
Publisher

Year
Volume
115
Issue
1
Pages
185-187
Physical description
Dates
published
2009-01
Contributors
author
  • Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
author
  • Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv115n1048kz
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