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Title: Gate-induced superconductivity in a monolayer topological insulator

Abstract

The layered semimetal tungsten ditelluride (WTe 2 ) has recently been found to be a two-dimensional topological insulator (2D TI) when thinned down to a single monolayer, with conducting helical edge channels. We found that intrinsic superconductivity can be induced in this monolayer 2D TI by mild electrostatic doping at temperatures below 1 kelvin. The 2D TI–superconductor transition can be driven by applying a small gate voltage. This discovery offers possibilities for gate-controlled devices combining superconductivity and nontrivial topological properties, and could provide a basis for quantum information schemes based on topological protection.


Citation Formats

Sajadi, Ebrahim, Palomaki, Tauno, Fei, Zaiyao, Zhao, Wenjin, Bement, Philip, Olsen, Christian, Luescher, Silvia, Xu, Xiaodong, Folk, Joshua A., and Cobden, David H. Gate-induced superconductivity in a monolayer topological insulator. United States: N. p., 2018. Web. doi:10.1126/science.aar4426.
Sajadi, Ebrahim, Palomaki, Tauno, Fei, Zaiyao, Zhao, Wenjin, Bement, Philip, Olsen, Christian, Luescher, Silvia, Xu, Xiaodong, Folk, Joshua A., & Cobden, David H. Gate-induced superconductivity in a monolayer topological insulator. United States. doi:10.1126/science.aar4426.
Sajadi, Ebrahim, Palomaki, Tauno, Fei, Zaiyao, Zhao, Wenjin, Bement, Philip, Olsen, Christian, Luescher, Silvia, Xu, Xiaodong, Folk, Joshua A., and Cobden, David H. Thu . "Gate-induced superconductivity in a monolayer topological insulator". United States. doi:10.1126/science.aar4426.
@article{osti_1483111,
title = {Gate-induced superconductivity in a monolayer topological insulator},
author = {Sajadi, Ebrahim and Palomaki, Tauno and Fei, Zaiyao and Zhao, Wenjin and Bement, Philip and Olsen, Christian and Luescher, Silvia and Xu, Xiaodong and Folk, Joshua A. and Cobden, David H.},
abstractNote = {The layered semimetal tungsten ditelluride (WTe 2 ) has recently been found to be a two-dimensional topological insulator (2D TI) when thinned down to a single monolayer, with conducting helical edge channels. We found that intrinsic superconductivity can be induced in this monolayer 2D TI by mild electrostatic doping at temperatures below 1 kelvin. The 2D TI–superconductor transition can be driven by applying a small gate voltage. This discovery offers possibilities for gate-controlled devices combining superconductivity and nontrivial topological properties, and could provide a basis for quantum information schemes based on topological protection.},
doi = {10.1126/science.aar4426},
journal = {Science},
issn = {0036-8075},
number = 6417,
volume = 362,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:
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Publisher's Version of Record at 10.1126/science.aar4426

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Cited by: 21 works
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