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

页码：311 / 312

页数：2

共 6 条

[1] NOTE ON THE K EXTENDED X-RAY ABSORPTION FINE-STRUCTURE DEBYE-WALLER FACTOR [J].