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Hydrodynamic electron flow and Hall viscosity

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Scaffidi_preprint.pdf (433.1Kb)
Date
02/06/2017
Author
Scaffidi, Thomas
Nandi, Nabhanila
Schmidt, Burkhard
Mackenzie, Andrew P.
Moore, Joel E.
Keywords
QC Physics
TK Electrical engineering. Electronics Nuclear engineering
Physics and Astronomy(all)
NDAS
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Abstract
In metallic samples of small enough size and sufficiently strong momentum-conserving scattering, the viscosity of the electron gas can become the dominant process governing transport. In this regime, momentum is a long-lived quantity whose evolution is described by an emergent hydrodynamical theory. Furthermore, breaking time-reversal symmetry leads to the appearance of an odd component to the viscosity called the Hall viscosity, which has attracted considerable attention recently due to its quantized nature in gapped systems but still eludes experimental confirmation. Based on microscopic calculations, we discuss how to measure the effects of both the even and odd components of the viscosity using hydrodynamic electronic transport in mesoscopic samples under applied magnetic fields.
Citation
Scaffidi , T , Nandi , N , Schmidt , B , Mackenzie , A P & Moore , J E 2017 , ' Hydrodynamic electron flow and Hall viscosity ' , Physical Review Letters , vol. 118 , no. 22 , 226601 . https://doi.org/10.1103/PhysRevLett.118.226601
Publication
Physical Review Letters
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevLett.118.226601
ISSN
0031-9007
Type
Journal article
Rights
© 2017, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at journals.aps.org / https://doi.org/10.1103/PhysRevLett.118.226601
Description
The authors acknowledge support from the Emergent Phenomena in Quantum Systems initiative of the Gordon and Betty Moore Foundation (T. S.) and NSF DMR-1507141 and a Simons Investigatorship (J. E. M.). We also acknowledge the support of the Max Planck Society and the UK Engineering and Physical Sciences Research Council under Grant No. EP/I032487/1.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/11223

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