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In recent years, research in the field of topological phases of matter has gained even more momentum due to its technological applications in quantum information theory. Such applications demand understanding the band structure topology of emerging quantum materials and, in particular, their sensitivity to temperature and external fields. In this talk, I will discuss the particular example of ZrTe5, a Dirac semimetal with great promisse for applications which displays rich phenomenology including topological phase transitions. I will explain how we used a combined theoretical and experimental analysis of the anomalous Hall response as a probe into the band structure topology and its phase diagram[1].
[1] Pedro M Lozano, Gabriel Cardoso, Niraj Aryal, Daniel Nevola, Genda Gu, Alexei Tsvelik, Weiguo Yin, and Qiang Li. Anomalous hall effect at the lifshitz transition in zrte5. arXiv preprint arXiv:2112.15227, 2021.
Gabriel received his undergraduate degree from the Federal University of Parana (Brazil) and Queen Mary University of London (UK) in 2017. Since then, he has been working towards a PhD at Stony Brook University (USA) with Alexander G. Abanov (Simons Center from Geometry and Physics) in the field of topological phases of matter. His works focus on geometrical and non-perturbative properties of these phases as well as their practical applications in quantum computation.
Tencent Meeting Link: https://meeting.tencent.com/dm/rFFYIfBWtHk7
Meeting ID: 892 511 736 Password: 123456