Kondo effect and thermoelectric transport in CePd3Bex

被引：9

作者：

Gumeniuk, Roman ^{[1
,2
]}

Schnelle, Walter ^{[2
]}

Kvashnina, Kristina O. ^{[3
,4
]}

Leithe-Jasper, Andreas ^{[2
]}

机构：

[1] Tech Univ Bergakad Freiberg, Inst Expt Phys, Leipziger Str 23, D-09596 Freiberg, Germany

[2] Max Planck Inst Chem Phys Fester Stoffe, Nothnitzer Str 40, D-01187 Dresden, Germany

[3] ESRF, 71 Ave Martyrs, Grenoble, France

[4] HZDR, Inst Resource Ecol, POB 510119, D-01314 Dresden, Germany

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2016年 / 28卷 / 16期

关键词：

crystal structure; Kondo effect; thermoelectricity; XAS; X-RAY-ABSORPTION; MAGNETIC-SUSCEPTIBILITY; INTERMEDIATE VALENCE; BEHAVIOR; SPECTROSCOPY; DEPENDENCE; STATE; POWER; HEAT; CE;

D O I：

10.1088/0953-8984/28/16/165603

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The physical properties of the series CePd3Bex (0 <= x <= 0.47) have been studied. Introducing Be into CePd3 results in a drastic reduction of the Seebeck coefficient from 100 mu V K-1 at 300 K to -2 mu V K-1, respectively. Paramagnetism of Ce3+ free ions and metallic conduction dominate the physical properties. A structural transition at x = 0.25 is accompanied by a significant lowering of the Kondo temperature and leads to a successive suppression of the thermoelectric performance of CePd3Bex with increasing x.

引用

页数：8

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