2-DIMENSIONAL ANTIFERROMAGNETIC EXCITATIONS IN ND2CUO4 CRYSTAL

被引：12

作者：

BOURGES, P ^{[1
]}

BOUDARENE, L ^{[1
]}

PETITGRAND, D ^{[1
]}

GALEZ, P ^{[1
]}

机构：

[1] CENS,CPCM,DPHG,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICA B | 1992年 / 180卷

关键词：

D O I：

10.1016/0921-4526(92)90787-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Inelastic neutron scattering experiments have been used to study magnetic excitations of Cu2+ spins in a Nd2CuO4 single crystal. These magnetic excitations are characteristic of the strong 2D antiferromagnetic coupling within CuO2 layers. As the temperature increases. the magnetic cross section shifts to lower frequency suggesting the existence of a temperature-dependent anisotropy gap in the spin-wave spectrum

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收藏

页码：447 / 449

页数：3

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