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arXiv · 2409.17444

Preparation and Characterization of High Quality Bi1-xSbx Thin Films: A Sputtering Deposition Approach

G. G. de Almeida·A. M. H. de Andrade·M. A. Tumelero
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Abstract

The Bi1-xSbx was the first 3D topological insulator found in nature. It presents a complex electronic structure with topological to trivial transition and a semimetallic to semiconductor transition, both achieved by changing the x fraction of Sb. The complex nature of this system may lead to several electronic and topological phases in matter, making it a promising quantum material. Here, we focused on preparing very high-quality thin films samples of Bi1-xSbx with varying fraction of x using the Co-deposition Magnetron Sputtering technique. Our results demonstrate that high-quality samples, with compact and uniform morphology, presenting a preferential direction of growth, can be obtained over SiO2 substrate. Our findings suggest a dependence between the thin films crystalline texture and the composition of the samples, as well as the deposition temperature.

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G. G. de Almeida, A. M. H. de Andrade, M. A. Tumelero. 2024-09-26. Preparation and Characterization of High Quality Bi1-xSbx Thin Films: A Sputtering Deposition Approach. https://doi.org/10.1116/6.0004109

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