ORIENTATIONAL AND TRANSLATIONAL DISORDER IN SEMICONDUCTING ZINTL COMPOUNDS

被引：16

作者：

PRICE, DL ^{[1
]}

SABOUNGI, ML ^{[1
]}

HOWELLS, WS ^{[1
]}

机构：

[1] RUTHERFORD APPLETON LAB, CHILTON OX11 0QX, ENGLAND

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.51.14923

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two alkali-metal-polyvalent-metal Zintl compounds, NaSn and CsPb, exhibit a two-stage melting process with high-temperature solid phases characterized by rapid dynamical disorder. In NaSn this disorder is associated with fast reorientations of the Sn44- polyanions closely coupled to a slower migration of the Na+ cations. In CsPb it is associated with rapid reorientations of Pb44- polyanions with the Cs+ cations participating in the dynamical disorder on the same time scale. In both cases the disordering has dramatic effects on the electronic and ionic transport and thermodynamic properties. © 1995 The American Physical Society.

引用

页码：14923 / 14929

页数：7

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