Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 51: Magnetism Poster B

MA 51.63: Poster

Donnerstag, 4. April 2019, 15:00–18:00, Poster C

Structural and magnetic properties of hexagonal Mn₃X (X = Ga, Sn) thin films — •Philipp Zilske¹, Samer Kurdi², Jungwoo Koo¹, and Günter Reiss¹ — ¹Center for Spinelectronic Materials and Devices, Department of Physics, Bielefeld University, Germany — ²Department of Materials Science and Metallurgy, University of Cambridge, United Kingdom

In the last decade, antiferromagnetic spintronics has established as an important field for future magnetic memory or logic [1]. Recently, D0₁₉ ε-Mn₃Y (Y = Ga, Ge, Sn) systems have emerged as new candidates for an active element in such systems. Theoretical calculations and first experimental results show large anomalous Hall and anomalous Nernst effects for those non-collinear antiferromagnets. However, these properties are only studied in detail for single crystalline bulk samples [2-4].

Here, we report on structural and magnetic properties of Mn₃X (X = Ga, Sn) thin films. Epitaxial Ru/Mn₃X films were grown on Al₂O₃ (0001) substrates via magnetron co-sputtering. For detailed structural analysis, we performed X-ray diffraction measurements and atomic force as well as transmission electron microscopy. Furthermore, the magnetic and transport properties of optimized samples will be discussed.

[1] T. Jungwirth et al., Nature Nanotech. 11, 231 (2016)
[2] Y. Zhang et al., Phys. Rev. B 95, 075128 (2017)
[3] S. Nakatsuji et al., Nature 527, 212 (2015)
[4] N. Kiyohara et al., Phys. Rev. Appl. 5, 064009 (2016)