Reference : Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously t...

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/53106

Title :	Black hole mirages: electron lensing and Berry curvature effects in inhomogeneously tilted Weyl semimetals
Language :	English
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]
Publication date :	28-Oct-2022
Journal title :	arXiv
Peer reviewed :	No
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.
Permalink :	http://hdl.handle.net/10993/53106
Other URL :	https://arxiv.org/abs/2210.16254
FnR project :	FnR ; FNR14764976 > Thomas Schmidt > TOPREL > Topology In Relativistic Semimetals > 01/08/2021 > 31/07/2024 > 2020

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