Magnetization and magnetoelectric effect in Bi1-xLaxFeO3 (0≤x≤0.15)

被引：132

作者：

Le Bras, G. ^{[1
]}

Colson, D. ^{[1
]}

Forget, A. ^{[1
]}

Genand-Riondet, N. ^{[1
]}

Tourbot, R. ^{[1
]}

Bonville, P. ^{[1
]}

机构：

[1] CEA, Ctr Etudes Saclay, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 13期

关键词：

PHASE-TRANSITIONS; MULTIFERROIC BIFEO3; SINGLE-PHASE;

D O I：

10.1103/PhysRevB.80.134417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on magnetization and magnetocapacitance measurements in the Bi1-xLaxFeO3 series for 0 <= x <= 0.15. We confirm that doping with La reduces the threshold magnetic field H-c for cancelling the magnetic spiral phase, and we show that H-c decreases as the La content increases up to x=0.15, which is the highest concentration for maintaining the noncentrosymmetric rhombohedral structure of BiFeO3. Measurements of the dielectric constant as a function of magnetic field in the series also show a maximum magnetocapacitance for x=0.15.

引用

页数：6

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