Regensburg 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 15: Magnetism Poster A
MA 15.86: Poster
Dienstag, 2. April 2019, 10:00–13:00, Poster E
Temperature and angular dependence of the anisotropic magnetoresistance in epitaxial Mn5Ge3 film — •Yufang Xie1,3, ye yuan2, mao wang1,3, chi xu1,3, manfred helm1,3, shengqiang zhou1, and Slawomir Prucnal1 — 1Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, D-01328 Dresden, Germany — 2Physical Science and Engineering Division, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia — 3Technische Universität Dresden, D-01062 Dresden, Germany
The (100) epitaxial ferromagnetic Mn5Ge3 films are made by ms-range diffusion of Mn into Ge (100) [1] . Temperature and angular dependent magnetoresistance (MR) measurements performed on the ferromagnetic Mn5Ge3 films reveal strong anisotropy when applied field is parallel to the film plane. More interestingly, the angular dependence of the MR at H =30 kOe change strongly with temperature. The characteristic feature of the angular dependent MR is a twofold symmetry at temperature below 170 K. As the temperature increases from 170 K to 270 K an additional set of peaks appears and the observed anisotropy becomes more and more prominent. At this temperature range the MR shows an overall fourfold symmetry. At the temperature higher than 270 K the angular dependent MR shows a twofold symmetry again.
[1] Y. Xie, Y. Yuan, M. Wang, C. Xu, R. Hübner, J. Grenzer, Y. Zeng, M. Helm, S. Zhou and S. Prucnal, Appl. Phys. Lett. 113, 222401 (2018)