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research article
Locality of the anomalous Hall conductivity
2017
The geometrical intrinsic contribution to the anomalous Hall conductivity (AHC) of a metal is commonly expressed as a reciprocal-space integral: as such, it only addresses unbounded and macroscopically homogeneous samples. Here we show that the geometrical AHC has an equivalent expression as a local property. We define a "geometrical marker" which actually probes the AHC in inhomogeneous systems (e.g., heterojunctions), as well as in bounded samples. The marker may even include extrinsic contributions of geometrical nature.
Type
research article
Web of Science ID
WOS:000399142800002
Authors
Publication date
2017
Publisher
Published in
Volume
95
Issue
12
Article Number
121114
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
May 1, 2017
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