SUPERCONDUCTING, ELECTRONIC AND MAGNETIC-ANOMALIES DUE TO STRUCTURAL TRANSITION AROUND X=0.12 IN LA2-XBAXCUO4

被引：57

作者：

KUMAGAI, K

WATANABE, I

KAWANO, K

MATOBA, H

NISHIYAMA, K

NAGAMINE, K

WADA, N

OKAJI, M

NARA, K

机构：

[1] NATL RES LAB METEROL,TSUKUBA,IBARAKI 305,JAPAN

[2] UNIV TOKYO,COLL ARTS & SCI,INST PHYS,TOKYO 153,JAPAN

[3] UNIV TOKYO,MESON SCI LAB,FAC SCI,TOKYO 113,JAPAN

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91680-3

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

From anomalies of the heat capacity and the thermal expansion, the structural phase boundary of the LTT-LTO transition is determined in the narrow range around x = 0.12 of La2-xBaxCuO4, where superconductivity is suppressed remarkably. The widely-spread Cu-NQR spectra and the decay of the asymmetry parameter of mu-SR are indicative of the magnetic order of Cu moments in the LTT phase where the induced charge transfer between Cu and O atoms causes the localization of the electronic state and the increase of magnetic moments at the Cu site.

引用

页码：913 / 914

页数：2

共 9 条

[1] STRUCTURAL PHASE-TRANSFORMATIONS AND SUPERCONDUCTIVITY IN LA2-XBAXCUO4 [J].