ONE-DIMENSIONAL SPIN FLUCTUATIONS IN A TRANSITION-METAL OXIDE

被引：36

作者：

DITUSA, JF

CHEONG, SW

BROHOLM, C

AEPPLI, G

RUPP, LW

BATLOGG, B

机构：

[1] JOHNS HOPKINS UNIV,DEPT PHYS & ASTRON,BALTIMORE,MD 21218

[2] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899

来源：

PHYSICA B | 1994年 / 194卷 / pt 1期

关键词：

Correlation methods - Crystal structure - Crystalline materials - Electric conductivity measurement - Energy gap - Magnetism - Monochromators - Neutron diffraction - Neutron scattering - Quantum theory - Yttrium compounds - Zinc compounds;

D O I：

10.1016/0921-4526(94)90420-0

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We use inelastic neutron scattering from polycrystalline Y2BaNiO5 and Y2BaNi0.96Zn0.04O5 specimens to demonstrate that the spin fluctuations in this compound are one-dimensional. In addition they are gapped, in accord with the S=1 nature of the Ni2+ and the Haldane conjecture. The gap remains well defined and may even grow slightly in the Zn-diluted compound.

引用

页码：181 / 182

页数：2

共 5 条

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