Choi, Eui Young Park, Seung-Young Baek, Seung-Hyub Kim, Younghak Lee, Dong Wook Seo, Ji Won 2024-05-09T09:30:08Z 2024-05-09T09:30:08Z 2024-05-09 2024-05 1567-1739 https://pubs.kist.re.kr/handle/201004/149805 We have observed quadrupolar angle -dependent anisotropic magnetoresistance (AMR) at low temperature in La0.67Sr0.33MnO3 (LSMO) films grown on SrTiO3 substrate, where the magnetic field was applied while rotating the direction of the applied magnetic field from out -of -plane (OP) to in -plane. At room temperature, the easy axis is in -plane and has a two-fold magnetic anisotropy. As the temperature decreases, it changes to a quadrupolar anisotropy. Along with the AMR, we have measured the magnetoresistance (MR) in the OP direction at various temperatures. Like the AMR, we found the appearance of a new magnetic configuration in the OP direction at low temperatures. We suggest that one of the important origins of the new OP magnetism, which appears at temperature much lower than the Curie temperature (Tc), is the d3z2_r2 orbital at the interface between the LSMO films and SrTiO3 substrate. It has been reported that despite the tensile strain imposed by the SrTiO3 substrate, the d3z2_r2 orbital exists at the interface and causes the OP magnetism. We demonstrate by a polarized x-ray resonant scattering that there is a higher density of d3z2_r2orbitals at the interface than in the region away from the interface. As other references have proposed, we suggest the orbital reconstructions and the orbital reconstruction-driven magnetic reorientation at the interface as the origin of the appearance of the OP magnetism present in the AMR and MR results. English The Korean Physical Society Evolution of magnetic anisotropy in La0.67Sr0.33MnO3 thin films due to the appearance of out-of-plane magnetization at low temperature Article 10.1016/j.cap.2024.02.009 1 Current Applied Physics, v.61, pp.71 - 74 Current Applied Physics 61 71 74 N scie scopus kci 001209152700001 2-s2.0-85186537156 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article INTERFACE