Electrical conductivities of the Ag6PS5X and the Cu6PSe5X (X=Br, I) argyrodites

被引：45

作者：

Beeken, RB ^{[1
]}

Garbe, JJ ^{[1
]}

Gillis, JM ^{[1
]}

Petersen, NR ^{[1
]}

Podoll, BW ^{[1
]}

Stoneman, MR ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Phys & Astron, Stevens Point, WI 54481 USA

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2005年 / 66卷 / 05期

关键词：

ionic conduction; phase transitions;

D O I：

10.1016/j.jpcs.2004.10.010

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The Ag6PS5Br and Ag6PS5I argyrodites crystallize in a face-centered-cubic lattice at room temperature. Both compounds exhibit purely Arrhenius behavior throughout the temperature range 150-400 K with similar activation energies of about 0.23 eV. Cu6PSe5Br and Cu6PSe5I also crystallize in a face-centered-cubic structure at room temperature. Cu6PSe5Br exhibits a distinctive anomaly in electrical conductivity near 286 K while Cu6PSe5I undergoes a first-order electrical phase transition near 265 K. Their activation energies above room temperature are 0.13 and 0.30 eV, respectively. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：882 / 886

页数：5

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