%0 Journal Article
%K room temperature
%K Multiferroics
%K ferroelectricity
%K Ferroelectric polarization
%K Antiferromagnetics
%K Antiferromagnetism
%K Strain engineering
%K Piezoresponse force microscopy
%K Non-linear optical
%K Orthorhombic phase
%K Physical societies
%K X-ray linear dichroisms
%A J.C Yang
%A Q He
%A S.J Suresha
%A C.Y Kuo
%A C.Y Peng
%A R.C Haislmaier
%A M.A Motyka
%A G Sheng
%A C Adamo
%A H.J Lin
%A Z Hu
%A L Chang
%A L.H Tjeng
%A E Arenholz
%A N.J Podraza
%A M Bernhagen
%A R Uecker
%A D.G Schlom
%A V Gopalan
%A L.Q Chen
%A C.T Chen
%A Ramamoorthy Ramesh
%A Y.H Chu
%B Physical Review Letters
%D 2012
%G eng
%R 10.1103/PhysRevLett.109.247606
%T Orthorhombic BiFeO3
%V 109
%X 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. © 2012 American Physical Society.