Clean 2D superconductivity in a bulk van der Waals superlattice-Reference-Cited by-同舟云学术

Clean 2D superconductivity in a bulk van der Waals superlattice

Published:2020-10-09 Issue:6513 Volume:370 Page:231-236
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Devarakonda A.¹^ORCID,Inoue H.¹,Fang S.²^ORCID,Ozsoy-Keskinbora C.³,Suzuki T.¹^ORCID,Kriener M.⁴^ORCID,Fu L.¹^ORCID,Kaxiras E.²³^ORCID,Bell D. C.³⁵^ORCID,Checkelsky J. G.¹^ORCID

Affiliation:

1. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

2. Department of Physics, Harvard University, Cambridge, MA 02138, USA.

3. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.

4. RIKEN Center for Emergent Matter Science (CEMS), Wako 351-0198, Japan.

5. Center for Nanoscale Systems, Harvard University, Cambridge, MA 02138, USA.

Abstract

Alternative route to a 2D superconductor Single layers of transition metal dichalcogenides exhibit exotic properties, including superconductivity. The usual route to obtaining such samples is to exfoliate a three-dimensional (3D) crystal. Devarakonda et al. instead grew a superlattice comprising alternating layers of the transition metal dichalcogenide hexagonal NbS 2 and the material Ba 3 NbS 5 (see the Perspective by Schoop). The inert Ba 3 NbS 5 layers serve to dissociate the superconducting NbS 2 layers from one another, resulting in 2D superconductivity with high carrier mobility. The combination of high mobility and reduced dimensionality may give rise to exotic quantum phases. Science , this issue p. 231 see also p. 170

Funder

National Science Foundation

Office of Naval Research

U.S. Department of Energy

Gordon and Betty Moore Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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