Magnetoresistance and anomalous Hall effect in micro-ribbons of the magnetic Weyl semimetal Co3Sn2S2

Geishendorf K, Schlitz R, Vir P, Shekhar C, Felser C, Nielsch K, Goennenwein STB, Thomas A (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Applied Physics Letters American Institute of Physics (AIP)

Book Volume: 114

Article Number: 092403

Journal Issue: 9

DOI: 10.1063/1.5086500

Abstract

Magnetic Weyl semimetals exhibit intriguing transport phenomena due to their non-trivial band structure. Recent experiments in the bulk crystals of the shandite-type Co3Sn2S2 have shown that this material system is a magnetic Weyl semimetal. To access the length scales relevant to chiral transport, it is mandatory to fabricate microstructures of this fascinating compound. We therefore have cut micro-ribbons (typical size 0.3 × 3 × 50 μm3) from Co3Sn2S2 single crystals using a focused beam of Ga2+-ions and investigated the impact of the sample dimensions and possible surface doping on the magnetotransport properties. The large intrinsic anomalous Hall effect observed in the micro-ribbons is quantitatively consistent with the one in bulk samples. Our results show that focused ion beam cutting can be used for nano-patterning single crystalline Co3Sn2S2, enabling future transport experiments in complex microstructures of this Weyl semimetal.

Involved external institutions

Leibniz-Institut für Festkörper- und Werkstoffforschung Dresden e.V. (IFW) / Leibniz Institute for Solid State and Materials Research Dresden DE Germany (DE) Technische Universität Dresden DE Germany (DE) Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids DE Germany (DE)

How to cite

APA:

Geishendorf, K., Schlitz, R., Vir, P., Shekhar, C., Felser, C., Nielsch, K.,... Thomas, A. (2019). Magnetoresistance and anomalous Hall effect in micro-ribbons of the magnetic Weyl semimetal Co3Sn2S2. Applied Physics Letters, 114(9). https://doi.org/10.1063/1.5086500

MLA:

Geishendorf, K., et al. "Magnetoresistance and anomalous Hall effect in micro-ribbons of the magnetic Weyl semimetal Co3Sn2S2." Applied Physics Letters 114.9 (2019).

BibTeX: Download