NEUTRON AND X-RAY-DIFFRACTION STUDIES OF A VALENCE FLUCTUATING COMPOUND YBINCU4

被引：57

作者：

KOJIMA, K

NAKAI, Y

SUZUKI, T

ASANO, H

IZUMI, F

FUJITA, T

HIHARA, T

机构：

[1] HIROSHIMA UNIV,FAC SCI,HIROSHIMA 730,JAPAN

[2] UNIV TSUKUBA,INST MAT SCI,TSUKUBA,IBARAKI 305,JAPAN

[3] NATL INST RES INORGAN MAT,TSUKUBA,IBARAKI 305,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 03期

关键词：

crystal structure; lattice constant; Rietveld analysis; valence fluctuation;

D O I：

10.1143/JPSJ.59.792

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The crystal structure of YbInCu4 has been refined by the: Rietveld analysis of TOF neutron powder diffraction data. This compound has a cubic AuBe5 (C15b, F43m)- type structure with the lattice constant a=7.1575(6)Å, and Yb ions are completely ordered at the 4c site. X-ray powder diffraction data have also been taken as a function of temperature. The lattice constant shows an abrupt change of 0.15% at the temperature of Yb valence phase transition (about 40 K) without any change in the crystal symmetry. © 1990, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

引用

页码：792 / 795

页数：4

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