This title appears in the Scientific Report :
2023
First-principles investigation of the topological phase transition in [Bi x Sb (1−x)] 2 [Te y Se (1−y)] 3
First-principles investigation of the topological phase transition in [Bi x Sb (1−x)] 2 [Te y Se (1−y)] 3
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 ap...
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Personal Name(s): | Wang, Cheng (Corresponding author) |
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Contributing Institute: |
Quanten-Theorie der Materialien; PGI-1 Quanten-Theorie der Materialien; IAS-1 |
Imprint: |
2023
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Physical Description: |
110 pages |
Dissertation Note: |
Masterarbeit, RWTH Aachen, 2023 |
Document Type: |
Master Thesis |
Research Program: |
Topological Matter |
Publikationsportal JuSER |
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 thesis 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 [Bi x Sb (1-x) ] 2 [Te y Se (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. |