Dresden 2020 – scientific programme

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DS: Fachverband Dünne Schichten

DS 33: Poster: Thin Films: Applications, Transport and Phase Change Materials

DS 33.4: Poster

Wednesday, March 18, 2020, 15:00–18:00, P1A

Transport properties in thin films of the chiral RhSi compound — •Hua Lv, Anastasios Markou, and Claudia Felser — Max Planck Institute for Chemical Physics of Solids, Dresden, Germany

Unconventional chiral fermions attract a lot of attention due to their unusual quantum phenomena and unique electrical properties, such as quantized photogalvanic optical response. Recent studies demonstrated the large surface Fermi arc [1] and quantized photocurrent in bulk RhSi crystal [2].

In this work, we systematically study the magneto transport properties of magnetron sputtered RhSi films with different thickness. We find the surface scattering plays an important role in the thinner films and Kohler's rule dominates the longitudinal magnetoresistance.

References:

[1] Daniel S. Sanchez et al, Nature 567, 500-505 (2019).

[2] Dylan Rees et al, arXiv: 1902.03230v2.