Interplay of Octahedral Tilts and Polar Order in BiFeO3 Films

被引：109

作者：

Kim, Young-Min ^{[1
,2
]}

Kumar, Amit ^{[3
]}

Hatt, Alison ^{[4
]}

Morozovska, Anna N. ^{[5
]}

Tselev, Alexander ^{[3
]}

Biegalski, Michael D. ^{[3
]}

Ivanov, Ilya ^{[3
]}

Eliseev, Eugene A. ^{[6
]}

Pennycook, Stephen J. ^{[1
]}

Rondinelli, James M. ^{[7
]}

Kalinin, Sergei V. ^{[3
]}

Borisevich, Albina Y. ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[2] Korea Basic Sci Inst, Div Electron Microscop Res, Taejon 305806, South Korea

[3] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA

[5] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine

[6] Natl Acad Sci Ukraine, Inst Problems Mat Sci, UA-03142 Kiev, Ukraine

[7] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

ADVANCED MATERIALS | 2013年 / 25卷 / 17期

关键词：

transition metal oxides; multiferroics; BiFeO3; scanning transmission electron microscopy; piezoresponse force microscopy; DOMAIN-STRUCTURE; OXIDE; POLARIZATION; INTERFACES; CRYSTALS; FERROELECTRICITY; TRANSITION; PHYSICS;

D O I：

10.1002/adma.201204584

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti-ferroelectric (Fe displacements - bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias.

引用

页码：2497 / 2504

页数：8

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