SKM 2023 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 12: Poster

DS 12.11: Poster

Mittwoch, 29. März 2023, 17:00–19:00, P3

Electrical characterization of SnTe thin film topological crystalline insulator — •Negin Beryani Nezafat, Sepideh Izadi, and Gabi Schierning — Department of physics, Experimental physics, Bielefeld University, 33615, Bielefeld, Germany

Topological crystalline insulators (TCIs) with gapless metallic states and protected carrier transport offer unique electrical features. Band structure of these materials consists of conventional parabolic band diagram together with linear surface transport. In this work, SnTe thin film as a promising TCI is considered to be our model system. Therewith, SnTe thin films with different thicknesses are deposited on silicon substrate using RF magnetron sputtering. The resulting morphology characterization for rock-salt SnTe crystalline thin film fulfills stoichiometric ratio. Electrical characterization including temperature dependent resistivity, magnetoresistance and Hall analysis are performed using Van der Pauw configuration. These findings introduce SnTe thin film as a promising candidate for technical applications such as device fabrication.