Supercurrent in van der Waals Josephson junction

Naoto Yabuki, Rai Moriya (), Miho Arai, Yohta Sata, Sei Morikawa, Satoru Masubuchi and Tomoki Machida ()
Additional contact information
Naoto Yabuki: Institute of Industrial Science, University of Tokyo
Rai Moriya: Institute of Industrial Science, University of Tokyo
Miho Arai: Institute of Industrial Science, University of Tokyo
Yohta Sata: Institute of Industrial Science, University of Tokyo
Sei Morikawa: Institute of Industrial Science, University of Tokyo
Satoru Masubuchi: Institute of Industrial Science, University of Tokyo
Tomoki Machida: Institute of Industrial Science, University of Tokyo

Nature Communications, 2016, vol. 7, issue 1, 1-5

Abstract: Abstract Supercurrent flow between two superconductors with different order parameters, a phenomenon known as the Josephson effect, can be achieved by inserting a non-superconducting material between two superconductors to decouple their wavefunctions. These Josephson junctions have been employed in fields ranging from digital to quantum electronics, yet their functionality is limited by the interface quality and use of non-superconducting material. Here we show that by exfoliating a layered dichalcogenide (NbSe2) superconductor, the van der Waals (vdW) contact between the cleaved surfaces can instead be used to construct a Josephson junction. This is made possible by recent advances in vdW heterostructure technology, with an atomically flat vdW interface free of oxidation and inter-diffusion achieved by eliminating all heat treatment during junction preparation. Here we demonstrate that this artificially created vdW interface provides sufficient decoupling of the wavefunctions of the two NbSe2 crystals, with the vdW Josephson junction exhibiting a high supercurrent transparency.

Date: 2016
References: Add references at CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.nature.com/articles/ncomms10616 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms10616

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms10616

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().