CaltechAUTHORS
  A Caltech Library Service

Enhancement of surface photocurrents in topological insulators using magnetic superlattices

Lindner, Netanel H. and Refael, Gil and von Oppen, Felix (2014) Enhancement of surface photocurrents in topological insulators using magnetic superlattices. . (Submitted) http://resolver.caltech.edu/CaltechAUTHORS:20140715-162801579

[img]
Preview
PDF - Submitted Version
See Usage Policy.

1576Kb

Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20140715-162801579

Abstract

The gapless surface states of topological insulators (TI) can potentially be used to detect and harvest low-frequency infrared light. Nonetheless, it was shown that significant surface photocurrents due to light with frequency below the bulk gap are rather hard to produce. Here we demonstrate that a periodic magnetic pattern added to the surface dramatically enhances surface photocurrents in TI's . The ability to produce substantial photocurrents on TI surfaces from mid-range and far-infrared light could be used in photovoltaic applications, as well as for detection of micrometer wavelength radiation.


Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1403.0010v1arXivArticle
Alternate Title:Lighting up topological insulators: large surface photocurrents from magnetic superlattices
Additional Information:Imported from arXiv.
Group:IQIM, Institute for Quantum Information and Matter
Funders:
Funding AgencyGrant Number
Packard Foundation UNSPECIFIED
NSF, Physics Frontier Center, Institute for Quantum Information and Matter (IQIM)1125565
Defense Advanced Research Projects Agency, Functional Engineered Nano Architectonics (FENA)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Binational Science Foundation (USA-Israel)UNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Record Number:CaltechAUTHORS:20140715-162801579
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140715-162801579
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47247
Collection:CaltechAUTHORS
Deposited By: Jacquelyn O'Sullivan
Deposited On:16 Jul 2014 04:37
Last Modified:20 Feb 2019 23:56

Repository Staff Only: item control page