Dresden 2020 – scientific programme
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MA: Fachverband Magnetismus
MA 57: Posters Magnetism II
MA 57.22: Poster
Thursday, March 19, 2020, 15:00–18:00, P3
Temperature and angular dependence of the anisotropic magnetoresistance in epitaxial Mn5Ge3 film — •Yufang Xie1,3, Ye Yuan2, Manfred Helm1,3, Jörg Grenzer1, Magdalena Birowska4, Dominik Kriegner3,5, Shengqiang Zhou1, and Prucnal Slawomir1 — 1Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany — 2Physical Science and Engineering Division, King Abdullah University of Science and Technology, 23955-6900, Thuwal, Saudi Arabia — 3Technische Universität Dresden, 01062 Dresden, Germany — 4Faculty of Physics, Institute of Theoretical Physics, University of Warsaw, Pasteura 5, 02093 Warsaw, Poland — 5Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
The epitaxial ferromagnetic Mn5Ge3 films are made by ms-range diffusion of Mn into Ge (100). Temperature dependent angular magnetoresistance (AMR) measurements were performed on Mn5Ge3 films. The AMR changes strongly with temperature rising from 5K to 300K. The characteristic feature of the AMR is a twofold symmetry below 100 K and above 270K. From 100 K to 270 K, AMR shows an overall sixfold symmetry. The temperature dependent X-ray diffraction indicates there is remarkable structural deformation at 100 K, which probably results in the modification of the spin configuration from collinear to noncollinear. Considering temperature dependent magnetic properties, it is possible to conclude the transformation of spin configuration is responsible for the temperature dependent AMR.