Magnetotransport of thin film Sr 1− x La x CuO 2 on (110) DyScO 3

Abstract We report measurements of low-temperature magnetoresistance in Sr 1− x La x CuO 2 ( x = 0.1) epitaxial thin film grown on (110) DyScO 3 single crystal. A positive magnetoresistance which is anisotropic and hysteretic with respect to the in-plane direction of magnetic field appears in Sr 1− x La x CuO 2 below T = 5 K, coinciding with antiferromagnetic ordering and strong magnetic anisotropy in DyScO 3 . The interplay of magnetotransport in epitaxial Sr 1− x La x CuO 2 with magnetism in the substrate is discussed based on magnetostriction and magnetic relaxation in DyScO 3 .