COMPRESSION OF THE HEXAGONAL LAVES PHASE UNI2 TO 41 GPA

被引:1
作者
DABOS, S
OLSEN, JS
GERWARD, L
BENEDICT, U
SPIRLET, JC
机构
[1] UNIV COPENHAGEN,PHYS LAB,DK-1168 COPENHAGEN K,DENMARK
[2] TECH UNIV DENMARK,APPL PHYS LAB 3,DK-2800 LYNGBY,DENMARK
来源
JOURNAL OF THE LESS-COMMON METALS | 1988年 / 142卷 / 1-2期
关键词
Heavy-Fermion Compounds - Hexagonal Laves Phase - Isothermal Bulk Modulus - Lattice Parameters;
D O I
10.1016/0022-5088(88)90198-1
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 pressure dependences of the lattice parameters a and c, of their ratio c/a and of the relative volume of UNi2 have been determined. No phase transition is observed in the pressure range studied. The volume and the lattice parameters decrease regularly with pressure whereas the c/a ratio remains almost constant over this pressure range. The isothermal bulk modulus B0 and its pressure derivative B0′ were determined from the pressure-volume data by fitting them to the F. Birch and the F.D. Murnaghan equations of state. The averages between the Birch and Murnaghan data are considered to be the best approximation for the compressibility of UNi2.
引用
收藏
页码:L19 / L21
页数:3
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