Critical electron scattering in UGe2 near the magnetic phase transition induced by pressure

被引：42
作者：
Oomi, G [1 ]
Kagayama, T
Onuki, Y
机构：
[1] Kumamoto Univ, Dept Mech Engn & Mat Sci, Kumamoto 8608555, Japan
[2] Osaka Univ, Dept Phys, Osaka 5600043, Japan
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 271卷
关键词：
electrical resistivity; ferromagnetism; high pressure; spin fluctuation;
D O I：
10.1016/S0925-8388(98)00122-4
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The electrical resistivity of single crystalline ferromagnetic UGe2 has been measured under high pressure up to 2 GPa. It is found that the Curie temperature T-C decreases with increasing pressure and the ferromagnetism disappears at high pressure. The temperature dependent electrical resistivity is analyzed on the basis of spin fluctuation theory. The T-2 term was observed at low temperature and the coefficient shows a divergence near the critical pressure. A T-5/3 dependence in the rho(T) curve was observed below and above T-C and its pressure effect is discussed briefly. (C) 1998 Published by Elsevier Science S.A.
引用
收藏
页码：482 / 485
页数：4
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