Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator

Sophie Charpentier; Luca Galletti; Gunta Kunakova; Riccardo Arpaia; Yuxin Song; Reza Baghdadi; Shu Min Wang; Alexei Kalaboukhov; Eva Olsson; Francesco Tafuri; Dmitry Golubev; Jacob Linder; Thilo Bauch; Floriana Lombardi

doi:10.1038/s41467-017-02069-z

Nature Communications (Dec 2017)

Induced unconventional superconductivity on the surface states of Bi2Te3 topological insulator

Sophie Charpentier,
Luca Galletti,
Gunta Kunakova,
Riccardo Arpaia,
Yuxin Song,
Reza Baghdadi,
Shu Min Wang,
Alexei Kalaboukhov,
Eva Olsson,
Francesco Tafuri,
Dmitry Golubev,
Jacob Linder,
Thilo Bauch,
Floriana Lombardi

Affiliations

Sophie Charpentier: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Luca Galletti: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Gunta Kunakova: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Riccardo Arpaia: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Yuxin Song: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Reza Baghdadi: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Shu Min Wang: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Alexei Kalaboukhov: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Eva Olsson: Department of Applied Physics, Chalmers University of Technology
Francesco Tafuri: Dipartimento di Fisica E. Pancini, Università di Napoli Federico II
Dmitry Golubev: Department of Applied Physics, Aalto University School of Science
Jacob Linder: Department of Physics, QuSpin Center of Excellence, Norwegian University of Science and Technology
Thilo Bauch: Department of Microtechnology and Nanoscience, Chalmers University of Technology
Floriana Lombardi: Department of Microtechnology and Nanoscience, Chalmers University of Technology

DOI: https://doi.org/10.1038/s41467-017-02069-z
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 8

Abstract

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Proximity effect may induce unconventional superconductivity in the topologically protected surface states of a topological insulator, however experimental evidence remains rare. Here, Charpentier et al. report proximity effect induced superconductivity in nanoscale Josephson junctions and suggest an unconventional p-wave order parameter.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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