ELECTRICAL AND MECHANICAL RELAXATION IN CAF2 DOPED WITH NAF

被引：29

作者：

JOHNSON, HB

TOLAR, NJ

MILLER, GR

CUTLER, IB

机构：

[1] Division of Materials Science and Engineering, University of Utah, Salt Lake City

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1969年 / 30卷 / 01期

关键词：

D O I：

10.1016/0022-3697(69)90336-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A loss peak caused by addition of NaF to CaF2 was studied by dielectric loss and internal friction methods. The observed relaxation times of the sodium ion-fluorine vacancy dipole in electrical and mechanical fields are given by equations (1) and (2). Telec. = 7.25 × 10-15exp 0·53 kT (1) Txmech. = 3.29 × 10-15exp 0·53 kT (2). It is proposed that the dipole relaxation occurs by fluorine vacancy jumps in the 〈100〉 direction of the first coordination shell of the sodium impurity. A possible explanation of the observed peak broadening as a function of dipole concentration is offered. © 1969.

引用

页码：31 / &

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JOHNSON, HB
TOLAR, NJ
MILLER, GR
CUTLER, IB
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