Elastic-constant anomalies in YbPO4

被引：27
|
作者：
Nipko, J
Grimsditch, M
Loong, CK
Kern, S
Abraham, MM
Boatner, LA
机构：
[1] COLORADO STATE UNIV,FT COLLINS,CO 80523
[2] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.53.2286
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The elastic constants of YbPO4 have been determined in the temperature range from 10 to 300 K by using Brillouin scattering techniques. An approximate 20% softening of the 1/2(C-11-C-12) elastic constant was observed, and this anomaly suggests that a Jahn-Teller-type coupling occurs between the low-lying electronic states of the Yb3+ ions and the B-1g lattice strain mode even though a cooperative structural phase transition does not take place.
引用
收藏
页码：2286 / 2290
页数：5
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