is a material with rich topological properties: it is a 2D topological insulator as a monolayer and a Weyl-semimetal and higher-order topological insulator in a bulk form. Inducing superconductivity in topological materials is a way to obtain topological superconductivity, which lays at the foundation for many proposals of fault tolerant quantum computing. Here, we demonstrate the emergence of superconductivity at the interface between and the normal metal palladium. The superconductivity has a critical temperature of about 1.2 K. By studying the superconductivity in a perpendicular magnetic field, we obtain the coherence length and the London penetration depth. These parameters correspond to a low Fermi velocity and a high density of states at the Fermi level. This hints to a possible origin of superconductivity due to the formation of flatbands. Furthermore, the critical in-plane magnetic field exceeds the Pauli limit, suggesting a non-trivial nature of the superconducting state.
Skip Nav Destination
CHORUS
Article navigation
21 March 2021
Research Article|
March 19 2021
Superconductivity in type-II Weyl-semimetal WTe2 induced by a normal metal contact
Special Collection:
2D Quantum Materials: Magnetism and Superconductivity
Artem Kononov
;
Artem Kononov
a)
1
Department of Physics, University of Basel
, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Martin Endres
;
Martin Endres
1
Department of Physics, University of Basel
, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Search for other works by this author on:
Gulibusitan Abulizi;
Gulibusitan Abulizi
1
Department of Physics, University of Basel
, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Search for other works by this author on:
Kejian Qu;
Kejian Qu
2
Department of Materials Science and Engineering, University of Tennessee
, Knoxville, Tennessee 37996, USA
Search for other works by this author on:
Jiaqiang Yan
;
Jiaqiang Yan
2
Department of Materials Science and Engineering, University of Tennessee
, Knoxville, Tennessee 37996, USA
3
Materials Science and Technology Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee
37831, USA
Search for other works by this author on:
David G. Mandrus;
David G. Mandrus
2
Department of Materials Science and Engineering, University of Tennessee
, Knoxville, Tennessee 37996, USA
3
Materials Science and Technology Division, Oak Ridge National Laboratory
, Oak Ridge, Tennessee
37831, USA
Search for other works by this author on:
Kenji Watanabe
;
Kenji Watanabe
4
National Institute for Materials Science
, 1-1 Namiki, Tsukuba 305-0044, Japan
Search for other works by this author on:
Takashi Taniguchi;
Takashi Taniguchi
4
National Institute for Materials Science
, 1-1 Namiki, Tsukuba 305-0044, Japan
Search for other works by this author on:
Christian Schönenberger
Christian Schönenberger
b)
1
Department of Physics, University of Basel
, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
5
Swiss Nanoscience Institute, University of Basel
, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the Special Topic on 2D Quantum Materials: Magnetism and Superconductivity.
J. Appl. Phys. 129, 113903 (2021)
Article history
Received:
July 09 2020
Accepted:
March 04 2021
Citation
Artem Kononov, Martin Endres, Gulibusitan Abulizi, Kejian Qu, Jiaqiang Yan, David G. Mandrus, Kenji Watanabe, Takashi Taniguchi, Christian Schönenberger; Superconductivity in type-II Weyl-semimetal WTe2 induced by a normal metal contact. J. Appl. Phys. 21 March 2021; 129 (11): 113903. https://doi.org/10.1063/5.0021350
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
Piezoelectric thin films and their applications in MEMS: A review
Jinpeng Liu, Hua Tan, et al.
Efficient methods for extracting superconducting resonator loss in the single-photon regime
Cliff Chen, David Perello, et al.
Related Content
Observation of an anisotropic ultrafast spin relaxation process in large-area WTe2 films
J. Appl. Phys. (April 2022)
Integrated mid-infrared sensing and ultrashort lasers based on wafer-level Td-WTe2 Weyl semimetal
Appl. Phys. Rev. (October 2024)
A Weyl semimetal WTe2/GaAs 2D/3D Schottky diode with high rectification ratio and unique photocurrent behavior
Appl. Phys. Lett. (September 2022)
Pressure-induced Td to 1T′ structural phase transition in WTe2
AIP Advances (July 2016)
Anisotropy in the electronic transport properties of Weyl semimetal WTe2 single crystals
AIP Advances (October 2018)