In-plane magnetic anisotropy of La0.7Ca0.3MnO3 film grown on (0001) sapphire

Publication date: Available online 12 November 2016
Source:Thin Solid Films
Author(s): Haiou Wang, Wentao Tan, Kunpeng Su, Shuai Huang, Weishi Tan, Hao Liu, Mengxiong Cao, Xingyu Wang, Chunlin Ma, Dexuan Huo
La0.7Ca0.3MnO3 (LCMO) films were grown on (0001) single-crystal sapphire (α-Al2O3) substrate by pulsed laser deposition. In this work, the growth of (110) oriented LCMO film on sapphire was achieved by controlling the film's deposition conditions, specifically the substrate temperature. The fixed orientation relationship between the film and the substrate [(110)f//(0001)s, ($\stackrel{—}{1}10$)f//($0\stackrel{—}{1}10$)s, (001)f//($\stackrel{—}{2}110$)s], was measured by high-resolution X-ray diffraction (HRXRD) and grazing incident X-ray diffraction (GIXRD) techniques. The LCMO film showed interesting in-plane magnetic anisotropy along the two mutually perpendicular in-plane directions, corresponding to [001]f as strong and [$\stackrel{—}{1}10$]f as weak magnetization directions.