Orthorhombic BiFeO3

A new orthorhombic phase of the multiferroic BiFeO3 has been created via strain engineering by growing it on a NdScO(3)(110)(o) substrate. The tensile-strained orthorhombic BiFeO3 phase is ferroelectric and antiferromagnetic at room temperature. A combination of nonlinear optical second harmonic gen...

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Veröffentlicht in:	Physical review letters 2012-12, Vol.109 (24), p.247606-247606
Hauptverfasser:	Yang, J C, He, Q, Suresha, S J, Kuo, C Y, Peng, C Y, Haislmaier, R C, Motyka, M A, Sheng, G, Adamo, C, Lin, H J, Hu, Z, Chang, L, Tjeng, L H, Arenholz, E, Podraza, N J, Bernhagen, M, Uecker, R, Schlom, D G, Gopalan, V, Chen, L Q, Chen, C T, Ramesh, R, Chu, Y H
Format:	Artikel
Sprache:	eng
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Zusammenfassung:	A new orthorhombic phase of the multiferroic BiFeO3 has been created via strain engineering by growing it on a NdScO(3)(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.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.109.247606