STABILIZATION OF POLARIZED CLUSTERS IN KTAO3 BY LI DEFECTS - FORMATION OF A POLAR GLASS

被引:63
作者
HOCHLI, UT [1 ]
WEIBEL, HE [1 ]
BOATNER, LA [1 ]
机构
[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37830
来源
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 14期
关键词
D O I
10.1088/0022-3719/12/14/005
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Dielectric relaxation and electret polarisation effects in KTaO 3:Li have been investigated as a function of Li concentration. The data reveal the presence of polarised clusters which are stabilised by Li impurities and permit a determination to be made of the coherence length for ferroelectric order in KTaO3. Based on the polarisation results, the KTaO3:Li system exhibits characteristics which indicate that it represents an electric dipole analogue of a spin glass and therefore should be termed a 'polar glass'.
引用
收藏
页码:L563 / L567
页数:5
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