Current Applied Physics, Vol.14, No.3, 251-253, 2014
Epitaxial perovskite oxide thin films on Ba(Ti,Zr)O-3 substrates for strain-induced electric/magnetic property changes near room temperature
We have reported the epitaxial growth and the electric/magnetic properties of SrRuO3 and (La0.67Sr0.33)MnO3 thin films on Ba(Ti0.925Zr0.075)O-3 substrates. The dielectric constant and thermal expansion of Ba(Ti0.925Zr0.075)O-3 exhibited hysteretic jumps at the structural transition temperatures. Near the rhombohedral to orthorhombic structural transition temperature of Ba(Ti0.925Zr0.075)O-3, which occurs at similar to 33 degrees C, we have observed a drastic jump of resistivity and magnetization of the thin films. These results suggest that epitaxial perovskite oxide thin films on Ba(Ti0.925Zr0.075)O-3 substrates should be quite useful for the strain-induced changes of physical properties near room temperature. (C) 2013 Elsevier B. V. All rights reserved.