Quantum Geometry and Related Phenomena in 2D Materials
APA
(2024). Quantum Geometry and Related Phenomena in 2D Materials. SciVideos. https://youtu.be/g-AIXRQ16UU
MLA
Quantum Geometry and Related Phenomena in 2D Materials. SciVideos, Jul. 25, 2024, https://youtu.be/g-AIXRQ16UU
BibTex
@misc{ scivideos_ICTS:29176,
doi = {},
url = {https://youtu.be/g-AIXRQ16UU},
author = {},
keywords = {},
language = {en},
title = {Quantum Geometry and Related Phenomena in 2D Materials},
publisher = {},
year = {2024},
month = {jul},
note = {ICTS:29176 see, \url{https://scivideos.org/icts-tifr/29176}}
}
Abstract
We will first present an introduction to quantum geometry of electrons in periodic structures in terms of Berry phases and curvature. We show that the coupling of phonons with electrons can have nontrivial consequences to quantum geometry of electronic structure, which manifests as oscillations in the Berry curvature dipole and hence have observable nonlinear Hall signatures. Using these, we introduce a vibrational spectroscopy based on Geometry of Quantum Electronic Structure (GQuES) making specific predictions for the transport and radiative GQuES spectra of 2D materials. On a related topic, we demonstrate emergence of nontrivial Berry curvature in graphene from its interaction with monolayer of CrTe2, and how their heterostructure can be used to develop an Anomalous Hall Transistor.