OBSERVATION OF INCOMMENSURATE 2-DIMENSIONAL MAGNETIC CORRELATIONS IN LA1.8SR0.2NIO4

被引：13

作者：

BROWN, PJ

HAYDEN, SM

LANDER, GH

ZARETSKY, J

STASSIS, C

METCALF, P

HONIG, JM

机构：

[1] UNIV BRISTOL,HH WILLS PHYS LAB,BRISTOL BS8 1TL,AVON,ENGLAND

[2] COMMISS EUROPEAN COMMUNITIES,JOINT RES CTR,W-7500 KARLSRUHE,GERMANY

[3] AMES LAB,AMES,IA 50011

[4] IOWA STATE UNIV SCI & TECHNOL,AMES,IA 50011

[5] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907

来源：

PHYSICA B | 1992年 / 180卷

关键词：

D O I：

10.1016/0921-4526(92)90766-L

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Neutron experiments on a single crystal of La1.8Sr0.2NiO4 show that short-range two-dimensional correlations exist within the Ni-O planes. At low temperature they are of sufficient duration (>10(-11) s) to appear in the elastic energy window of the spectrometer. We discuss various physical models for the spin correlations and present calculations on an antiphase domain model, which qualitatively simulates the observations.

引用

页码：380 / 382

页数：3

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