2D magnetic behaviour of Nd in Nd2CuO4 below T-N

被引：2

作者：

Casalta, H ^{[1
]}

Bourges, P ^{[1
]}

Petitgrand, D ^{[1
]}

dAstuto, M ^{[1
]}

Ivanov, A ^{[1
]}

机构：

[1] IV KURCHATOV ATOM ENERGY INST,RUSSIAN RES CTR,MOSCOW 123182,RUSSIA

来源：

PHYSICA B | 1997年 / 234卷

关键词：

high-T-c superconductors; quasielastic scattering; spin fluctuations;

D O I：

10.1016/S0921-4526(97)01101-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We investigated by neutron scattering the rod-like magnetic contribution in Nd2CuO4 along Q=(0.5,0.5, q(l)) (q(l) being continuous). A direct comparison with Pr2CuO4 suggests that the Nd moments are mainly 2D ordered above 40 K, with virtually no magnetic correlations along the c-axis. This result is in agreement with recent magnetic X-ray measurements. We also observe critical fluctuations at each Cu spin reorientation in Nd2CuO4.

引用

页码：803 / 805

页数：3

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