Pressure induced changes of magnetic phase transitions in RCo4B compounds

被引:27
作者
Arnold, Z
Kamarád, J
Skorokhod, Y
Hong, NM
Thuy, NP
Thang, CV
机构
[1] Inst Phys AS CR, Prague 16253 6, Czech Republic
[2] Inst Mat Sci NCST, Hanoi, Vietnam
[3] Univ Hanoi, Fac Phys, Hanoi, Vietnam
[4] Hanoi Univ Technol, ITIMS, Hanoi, Vietnam
关键词
intermetallic compounds; magnetic phase transitions; magnetic anisotropy; pressure effect;
D O I
10.1016/S0304-8853(03)00068-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The magnetovolume and magnetic properties of RCo4B (R-Y, Ce, Gd) compounds under pressure up to 12 kbar have been studied. We determined the volume dependencies of Curie temperatures, magnetization, spin reorientation transitions (for YCo4B), first-order magnetization process (for monocrystalline GdCo4B) and also the pressure induced changes of the volume anomaly connected with the isostructural phase transition of CeCo4B. The results have been used to analyze the influence of rare-earth atoms on the volume dependencies of exchange interactions and magnetic anisotropy of RCo4B compounds. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:382 / 388
页数:7
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