Magnetic phase diagram of UCoAl

被引：4
作者：
Yamada, H
Mushnikov, NV
Goto, T
机构：
[1] Shinshu Univ, Fac Sci, Dept Phys, Matsumoto, Nagano 3908621, Japan
[2] Univ Tokyo, ISSP, Kashiwa, Chiba 2778581, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2002年 / 63卷 / 6-8期
关键词：
intermetallic compounds; magnetic materials; high pressure; magnetic properties; phase transitions;
D O I：
10.1016/S0022-3697(02)00094-X
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Temperature T and pressure P dependences of the Landau coefficients for UCoAl are discussed by taking into account the magneto-volume effects and anisotropic spin fluctuations based on the Landau-Ginzburg theory. The P-dependence of the mean square amplitude of spin fluctuations is also discussed. A magnetic phase diagram is obtained with the parameters estimated from the observed magnetization curves under high pressures. The P-dependences of the characteristic temperatures T-0 and T-max, where the metamagnetic transition disappears and the susceptibility reaches a maximum, are estimated and compared with the observed results. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：1189 / 1191
页数：3
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