Shape-dependent magnetoelectric coupling in nanoscale BiFeO3

被引：14

作者：

Sahoo, Aditi ^{[1
]}

Bhattacharya, Dipten ^{[1
]}

机构：

[1] Cent Glass & Ceram Res Inst, CSIR, Adv Mech & Mat Characterizat Div, Kolkata 700032, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 772卷 / 193-198期

关键词：

Multiferroics; Nanoscale; Shape-dependent; Magnetoelectric coupling; MAGNETIC-PROPERTIES; OPTICAL-PROPERTIES; PARTICLE-SIZE;

D O I：

10.1016/j.jallcom.2018.09.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The nanorods and nanocuboids of multiferroic BiFeO3 exhibit remarkable shape dependence of crystallographic, ferroelectric, and magnetoelectric properties. The nanorods, for example, assume R3m space group (as against R3c observed both in bulk and nearly spherical nanosized particles) and are found to be oriented preferentially with long axis parallel to [101]. The magnetic and electric coercive fields as well as magnetoelectric coupling - measured from change in remanent polarization under a magnetic field - are found to be larger in nanocuboids. The shape dependence of multiferroic properties originates from that of microstrain and anisotropy. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：193 / 198

页数：6

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