57Fe NMR study of a spatially modulated magnetic structure in BiFeO3

被引：97

作者：

Zalesskii, AV

Zvezdin, AK

Frolov, AA

Bush, AA

机构：

[1] Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 117333, Russia

[2] Russian Acad Sci, Inst Gen Phys, Moscow 117942, Russia

[3] Tech Univ, Moscow State Inst Radio Engn Elect & Automat, Moscow 117454, Russia

来源：

JETP LETTERS | 2000年 / 71卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1307994

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Fe-57 spin echo spectra were studied in local magnetic fields of a BiFeO3 ferroelectric antiferromagnet over the temperature range 77-304 K. The line shape analysis confirmed the presence of a spatially modulated, incommensurate cycloidal spin structure in BiFeO3 and allowed the actual spin distribution to be reproduced throughout the cycloid length. The distribution was found to be essentially anharmonic. The modulated structure is stable over the whole temperature range studied. The cycloid wave becomes more harmonic with temperature elevation. (C) 2000 MAIK "Nauka / Interperiodica".

引用

页码：465 / 468

页数：4

共 14 条

[1]

ALEXANDROVA IP, 1986, INCOMMENSURATE PHASE, P277

[2] PRECISION DETERMINATION OF LATTICE PARAMETERS AND COEFFICIENTS OF THERMAL EXPANSION OF BIFEO3 [J].