(139La, 55Mn) NMR and magnetic susceptibility data on microscopic phase separation in La0.9MnO3 single crystal

被引：15

作者：

Mikhalev, KN

Lekomtsev, SA

Gerashchenko, AP

Arkhipov, VE

Korolev, AV

Mukovskii, YM

Arsenov, AA

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia

[2] Moscow Steel & Alloys Inst, Moscow 117936, Russia

来源：

JETP LETTERS | 2000年 / 72卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1134/1.1351198

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic susceptibility of the La0.9MnO3 single crystal was measured and its (La-139, Mn-55) NMR spectra were recorded. The data obtained indicate that the areas with an A-type antiferromagnetic order (T-N = 140 K) and magnetic moments aligned with the b axis occupy a major part of the sample volume in manganite with a considerable concentration of cationic vacancies; simultaneously, the clusters with a canted magnetic sublattice and ferromagnetic interaction between magnetic moments are formed near the vacancies. Charge distribution in these clusters is materially different from that in the antiferromagnetic areas. Magnetic state and relative concentration of the clusters are discussed. (C) 2000 MAIK "Nauka/Interperiodica".

引用

页码：599 / 602

页数：4

共 15 条

[1] Electronic phase separation in lanthanum manganites: Evidence from Mn-55 NMR [J].