Dresden 2017 – wissenschaftliches Programm
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MA: Fachverband Magnetismus
MA 64: Poster 1
MA 64.7: Poster
Freitag, 24. März 2017, 09:30–13:00, P2-EG
Co-sputtered PtMnSb thin films and Pt/PtMnSb bilayers for spin-orbit torque investigations — •Jan Krieft1, Johannes Mendil2, Myriam H. Aguirre3, Can O. Avci4, Christoph Klewe5, Karsten Rott1, Jan-Michael Schmalhorst1, Günter Reiss1, Pietro Gambardella2, and Timo Kuschel1,6 — 1CSMD, Bielefeld University, Germany — 2Department of Materials, ETH Zürich, Switzerland — 3Universidad de Zaragoza, Spain — 4MIT, Boston, USA — 5ALS, Berkeley, USA — 6University of Groningen, The Netherlands
The manipulation of magnetization by the use of spin-orbit torques (SOTs) has recently been extensively studied.1,2 Particular attention is paid to non-centrosymmetric systems with space inversion asymmetry, where SOTs emerge even in single-layer materials.3,4 Here, we report on the growth and epitaxial properties of the SOT material PtMnSb thin films and PtMnSb/Pt bilayers deposited on MgO(001) substrates by dc magnetron co-sputtering at high temperature in ultra-high vacuum. The film properties were investigated by x-ray diffraction, x-ray reflectivity, atomic force microscopy, and electron microscopy, in order to provide information on the film structure, stoichiometry, and surface topography.
[1] I. M. Miron et al., Nature 476, 189 (2011).
[2] L. Neumann et al., Appl. Phys. Lett. 109, 142405 (2016).
[3] T. Jungwirth et al., Nat. Nanotechn. 11, 231 (2016).
[4] P. Wadley et al., Science 351, 587 (2016).