Article (Scientific journals)
Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously tilted Weyl semimetals
Haller, Andreas; Hegde, Suraj; Xu, Chen et al.
2023In SciPost Physics, 14, p. 119
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Abstract :
[en] We study electronic transport in Weyl semimetals with spatially varying nodal tilt profiles. We find that the flow of electrons can be guided precisely by judiciously chosen tilt profiles. In a wide regime of parameters, we show that electron flow is described well by semiclassical equations of motion similar to the ones governing gravitational attraction. This analogy provides a physically transparent tool for designing tiltronic devices, such as electronic lenses. The analogy to gravity circumvents the notoriously difficult full-fledged description of inhomogeneous solids, but a comparison to microscopic lattice simulations shows that it is only valid for trajectories sufficiently far from analogue black holes. We finally comment on the Berry curvature-driven transverse motion, and relate the latter to spin precession physics.
Disciplines :
Physics
Author, co-author :
Haller, Andreas ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
Hegde, Suraj;  Technische Universität Dresden > Institute of Theoretical Physics
Xu, Chen;  Technische Universität Dresden > Institute of Theoretical Physics
De Beule, Christophe ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) ; University of Pennsylvania - Penn > Department of Physics and Astronomy
Schmidt, Thomas ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS)
Meng, Tobias;  Technische Universität Dresden > Institute of Theoretical Physics
External co-authors :
yes
Language :
English
Title :
Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously tilted Weyl semimetals
Publication date :
17 May 2023
Journal title :
SciPost Physics
ISSN :
2542-4653
Publisher :
SciPost Foundation, Amsterdam, Netherlands
Volume :
14
Pages :
119
Peer reviewed :
Peer Reviewed verified by ORBi
FnR Project :
FNR14764976 - Topology In Relativistic Semimetals, 2020 (01/08/2021-31/07/2024) - Thomas Schmidt
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