%0 Journal Article
%K Thin films
%K Polarization
%K Rotation
%K Spontaneous polarizations
%K Epitaxial films
%K Induced polarization
%K Thick films
%K Thermoanalysis
%A H.W Jang
%A S.H Baek
%A D Ortiz
%A C.M Folkman
%A R.R Das
%A Y.H Chu
%A P Shafer
%A J.X Zhang
%A S Choudhury
%A V Vaithyanathan
%A Y.B Chen
%A D.A Felker
%A M.D Biegalski
%A M.S Rzchowski
%A X.Q Pan
%A D.G Schlom
%A L.Q Chen
%A Ramamoorthy Ramesh
%A C.B Eom
%B Physical Review Letters
%D 2008
%G eng
%R 10.1103/PhysRevLett.101.107602
%T Strain-induced polarization rotation in epitaxial (001) BiFeO3 thin films
%V 101
%X Direct measurement of the remanent polarization of high quality (001)-oriented epitaxial BiFeO3 thin films shows a strong strain dependence, even larger than conventional (001)-oriented PbTiO3 films. Thermodynamic analysis reveals that a strain-induced polarization rotation mechanism is responsible for the large change in the out-of-plane polarization of (001) BiFeO3 with biaxial strain while the spontaneous polarization itself remains almost constant. © 2008 The American Physical Society.