PGI-1 Talk: Cheng Wang

Quantum Theory of Materials Seminar

First-principles investigation of the topological phase transition in [BixSb(1−x)]2[TeySe(1−y)]3

Join us at: https://iffvc.fz-juelich.de/b/nat-ham-1kc-oip

In the rapidly evolving field of condensed matter physics, the study of topological insulators has opened new horizons for understanding of quantum states of matter. Among these, bismuth antimony telluride selenide (BSTS) materials stand out due to their unique electronic properties and potential applications in quantum computing.This talk presents an in-depth analysis of BSTS materials, focusing on the pivotal role of spin-orbit coupling and compositional variations in driving topological phase transitions of the [BixSb(1−x)]2[TeySe(1−y)]3 random alloy. Through sophisticated computational models and simulations, we dissect the band structures of BSTS materials to uncover the mechanisms that govern their topological behaviors. Our research not only advances the theoretical framework of topological insulators but also paves the way for practical applications in next-generation electronic devices, offering insights into the exploitation of Majorana fermions and the enhancement of superconducting properties. The findings of this thesis aim to contribute substantially to the field of quantum materials, highlighting the promise of BSTS materials in the quest for new quantum phenomena and technologies.

Contact

Prof. Dr. Stefan Blügel

Phone: +49 2461 61-4249
Email: s.bluegel@fz-juelich.de