EXAFS STUDIES ON LIQUID SE-TE MIXTURES

被引：14

作者：

INUI, M

TAMURA, K

YAO, M

ENDO, H

HOSOKAWA, S

HOSHINO, H

机构：

[1] KYOTO UNIV,FAC SCI,DEPT PHYS,KYOTO 606,JAPAN

[2] HIROSHIMA UNIV,FAC INTEGRATED ARTS & SCI,HIROSHIMA 730,JAPAN

[3] HIROSAKI UNIV,FAC EDUC,HIROSAKI,AOMORI 036,JAPAN

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1990年 / 117卷

关键词：

D O I：

10.1016/0022-3093(90)90891-O

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

EXAFS measurements of liquid (1-) SeTe mixtures have been carried out both on Se and Te K-edges. From a curve fit analysis, the bond length in 1-Se is estimated to be 2.34A, which is shorter than that in crystalline Se. For 1-Te no single-shell model is good enough to fit the observed EXAFS spectrum. The result with two-shell fit is encouraging and indicate that the neighboring atoms are located at the distances of 2.83A and 3.03A. In the liquid mixtures the atomic arrangement of Se and Te around each central atom is resolved utilizing large difference in the wave-vector dependence of backward scattering amplitude from Te and Se. The temperature variation of the mean square displacement of the SeTe bond is found to be much larger than that of the SeSe one. © 1990.

引用

页码：112 / 115

页数：4

共 11 条

[1] SHORT-RANGE ORDER IN THE DISORDERED STATES OF SELENIUM-TELLURIUM MIXTURES [J].