EFFECT OF PRESSURE ON LATTICE-PARAMETER, MAGNETIC-SUSCEPTIBILITY AND REFLECTIVITY OF SMS

被引：31

作者：

KELLER, R

GUNTHERODT, G

HOLZAPFEL, WB

DIETRICH, M

HOLTZBERG, F

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-7000 STUTTGART 80,FED REP GER

[2] KERNFORSCHUNGSZENTRUM KARLSRUHE,INST TECH PHYS,D-7500 KARLSRUHE,FED REP GER

[3] UNIV KARLSRUHE,INST EXPTL KERNPHYS,D-7500 KARLSRUHE,FED REP GER

[4] IBM CORP,THOMAS J WATSON RES CTR,YORKTOWN HTS,NY 10598

来源：

SOLID STATE COMMUNICATIONS | 1979年 / 29卷 / 11期

关键词：

D O I：

10.1016/0038-1098(79)90154-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The lattice parameter of SmS single crystals has been measured under hydrostatic pressure up to 70 kbar. The fit for the metallic phase by means of the Birch equation gives an unusually large pressure derivative of the bulk modulus B' = 11 and hence a large pressure dependence of B. No change in the nonmagnetic intermediate valence state of Sm is observed up to 24 kbar as concluded from our magnetic susceptibility measurements. Reflectivity measurements under hydrostatic pressure p > 6.5 kbar show a small plasma edge shift (∼0.08 eV) towards lower energy upon cooling from 77 to 4.2 K. Hence the low temperature resistivity anomaly is attributed to an enhanced conduction electron scattering. © 1979.

引用

页码：753 / 758

页数：6

共 32 条

[1] HEAT-CAPACITY AND RESISTIVITY OF METALLIC SMS AT HIGH-PRESSURE [J].