EXAFS STUDY ON THE LOCAL-STRUCTURE IN POTASSIUM TANTALATE

被引：7
|
作者：
NISHIHATA, Y
KAMISHIMA, O
MAEDA, H
ISHII, T
SAWADA, A
TERAUCHI, H
机构：
[1] OKAYAMA UNIV, FAC ENGN, OKAYAMA 700, JAPAN
[2] KWANSEI GAKUIN UNIV, SCH SCI, NISHINOMIYA, HYOGO 662, JAPAN
来源：
PHYSICA B | 1995年 / 208卷 / 1-4期
关键词：
D O I：
10.1016/0921-4526(94)00684-N
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The local structure around Ta atom in potassium tantalate, KTaO3, has been investigated by using extended X-ray absorption fine structure (EXAFS) measurements. EXAFS spectra near the Ta-L(III) edge were observed at temperatures from room temperature to 700 K. Anharmonicity of the thermal vibration delta((3)) in the Ta-O atomic pair, where these atoms locate statistically on the inversion center, appears at high temperatures, while the delta((4)) is almost negligible below 700 K.
引用
收藏
页码：311 / 312
页数：2
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