Strain Engineering To Control The Magnetic And Magnetotransport Properties Of La0.67sr0.33mno3 Thin Films

Strain engineering can be used to tailor the magnetic and magnetotransport properties of La0.67Sr0.33MnO3 thin films by varying the tetragonal distortion (c/a ratio) between a compressive strain of 1.005 and a tensile strain of 0.962 through the choice of the substrate type and the presence of a buffer layer. We find that increasing the tensile tetragonal distortion of the La0.67Sr0.33MnO3 thin film decreases the saturation magnetization, changes the temperature dependence of the resistivity and magnetoresistance, and increases the resistivity by several orders of magnitude. 2010 American Institute of Physics. [doi:10.1063/1.3484147]