High-pressure resistivity and lattice parameters of CeNi2Ge2

被引：13

作者：

Fukuhara, T

Maezawa, K

Ohkuni, H

Kagayama, T

Oomii, G

机构：

[1] TOYAMA UNIV,DEPT PHYS,TOYAMA 939,JAPAN

[2] KUMAMOTO UNIV,DEPT MECH ENGN & MAT SCI,KUMAMOTO 860,JAPAN

来源：

PHYSICA B | 1997年 / 230卷

关键词：

heavy electron system; resistivity; CeNi2Ge2; Gruneisen parameter; high pressure;

D O I：

10.1016/S0921-4526(96)00589-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The electrical resistivity and the lattice parameters of the tetragonal heavy-fermion compound CeNi2Ge2 with ThCr2Si2 type of structure have been investigated under high pressure. At room temperatures, the compression curve of an unit-cell volume up to 70 kbar is well fitted to Murnaghan equation of state. In the electrical resistivity at low temperatures, a gradual depression of the Fermi-liquid AT(2) term with increasing pressure is observed. From these results, the Gruneisen parameter of the characteristic energy of the Fermi-liquid ground state is determined to be 90.

引用

页码：198 / 200

页数：3

共 7 条

[1] THE HEAVY-FERMION COMPOUND CERU2SI2 - MAGNETIC INSTABILITY, LATTICE QUASICOLLAPSE AND METAMAGNETISM [J].