Orthorhombic BiFeO3

被引：91

作者：

Yang, J. C. ^{[1
]}

He, Q. ^{[2
,3
]}

Suresha, S. J. ^{[4
]}

Kuo, C. Y. ^{[5
,6
]}

Peng, C. Y. ^{[1
]}

Haislmaier, R. C. ^{[7
]}

Motyka, M. A. ^{[8
]}

Sheng, G. ^{[7
]}

Adamo, C. ^{[9
]}

Lin, H. J. ^{[5
]}

Hu, Z. ^{[6
]}

Chang, L. ^{[1
]}

Tjeng, L. H. ^{[6
]}

Arenholz, E. ^{[3
]}

Podraza, N. J. ^{[10
]}

Bernhagen, M. ^{[11
]}

Uecker, R. ^{[11
]}

Schlom, D. G. ^{[9
,12
]}

Gopalan, V. ^{[7
]}

Chen, L. Q. ^{[7
]}

Chen, C. T. ^{[5
]}

Ramesh, R. ^{[2
]}

Chu, Y. H. ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

[4] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA

[5] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

[6] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany

[7] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[8] Penn State Univ, Dept Engn Sci & Mech, University Pk, PA 16802 USA

[9] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[10] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA

[11] Leibniz Inst Crystal Growth, D-12489 Berlin, Germany

[12] Kavli Inst Cornell Nanoscale Sci, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 24期

基金：

美国国家科学基金会;

关键词：

X-RAY-ABSORPTION; THIN-FILMS; PHOTOEMISSION; DICHROISM; OXIDES;

D O I：

10.1103/PhysRevLett.109.247606

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new orthorhombic phase of the multiferroic BiFeO3 has been created via strain engineering by growing it on a NdScO3(110)(o) substrate. The tensile-strained orthorhombic BiFeO3 phase is ferroelectric and antiferromagnetic at room temperature. A combination of nonlinear optical second harmonic generation and piezoresponse force microscopy revealed that the ferroelectric polarization in the orthorhombic phase is along the in-plane < 110 >(pc) directions. In addition, the corresponding rotation of the antiferromagnetic axis in this new phase was observed using x-ray linear dichroism. DOI: 10.1103/PhysRevLett.109.247606

引用

页数：5

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