Magnetic Anisotropy of Lu_2Co_{17-x}Si_x Single Crystals

• Authors: E. Tereshina , A. Andreev , E. Šantavá , S. Daniš
• Languages of publication: EN

Abstracts

EN

Magnetic anisotropy of Lu_2Co_{17-x}Si_x single crystals grown by the Czochralski method was investigated. The homogeneity range of Si substitution for Co extends up to x = 3.4 in Lu_2Co_{17-x}Si_x solid solutions. The unit cell volume, Curie temperature, and spontaneous magnetic moment decrease monotonously with increasing Si content. Lu_2Co_{17} has the easy-plane type of magnetic anisotropy in the ground state, which changes into the easy-axis type by two spin-reorientation transitions of the second-order, the easy-plane-easy-cone at T_{SR1}~680 K and the easy-cone - easy-axis at T_{SR2}~730 K. Upon Si substitution, the observed spin-reorientations shift towards the lower temperatures for Lu_2Co_{17-x}Si_x (T_{SR1}~75 K and T_{SR2}~130 K in Lu_2Co_{16}Si) and vanish for compounds with 1

Keywords

EN

75.30.-m; 75.30.Gw

Discipline

• 75.30.Gw: Magnetic anisotropy
• 75.30.-m: Intrinsic properties of magnetically ordered materials(for critical point effects, see 75.40.-s; for magnetotransport phenomena, see 75.47.-m)

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 235-238

Dates

published

2008-01

received

2007-07-09

Contributors

author

E. Tereshina

• Institute of Physics, Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic
• Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116 Prague, Czech Republic

author

A. Andreev

• Institute of Physics, Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic

author

E. Šantavá

• Institute of Physics, Academy of Sciences, Na Slovance 2, 18221 Prague, Czech Republic

author

S. Daniš

• Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Ke Karlovu 5, 12116 Prague, Czech Republic

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Identifiers

DOI

10.12693/APhysPolA.113.235