STRUCTURAL PHASE-TRANSITIONS IN LA(2-X-Y)RE(Y)SR(X)CUO(4)

被引：6
|
作者：
CRAMM, M
BUCHNER, B
FIACK, A
HOLLANDMORITZ, E
MULLER, R
SCHLABITZ, W
BRADEN, M
HOHLWEIN, D
机构：
[1] CENS,CEA,CNRS,LAB LEON BRILLOUIN,F-91191 GIF SUR YVETTE,FRANCE
[2] UNIV TUBINGEN,HMI,INST KRISTALLOG,D-14109 BERLIN,GERMANY
来源：
PHYSICA C | 1994年 / 235卷
关键词：
D O I：
10.1016/0921-4534(94)91652-7
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present a powder neutron diffraction study of the structural phase transitions in La1.7-xSrxNd0.3CuO4 for x = 0.0 - 0.20. The tilting angle of the CuO6 octahedra increases from T-HT with decreasing temperature. Below 100 K it is nearly temperature independent without any significant change even at T-LT Due to the decrease of T-HT the tilting angle decreases with the Sr content. The tilting axis changes from < 0,1,0 > towards < 1,1,0 > at the LT-transition, For the LTO phase a linear relationship is found between the orthorhombic splitting and the square of the tilting angle.
引用
收藏
页码：855 / 856
页数：2
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