dc.contributor.author
Madsen, Kevin A.
dc.contributor.author
Bergholtz, Emil J.
dc.contributor.author
Brouwer, Piet W.
dc.date.accessioned
2019-01-09T10:57:23Z
dc.date.available
2019-01-09T10:57:23Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/23663
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-1450
dc.description.abstract
We calculate the Josephson current density j(ϕ) for a Weyl superconductor–normal-metal–superconductor junction for which the outer terminals are superconducting Weyl metals and the normal layer is a Weyl (semi)metal. We describe the Weyl (semi)metal using a simple model with two Weyl points. The model has broken time-reversal symmetry, but inversion symmetry is present. We calculate the Josephson current for both zero and finite temperature for the two pairing mechanisms inside the superconductors that have been proposed in the literature, zero-momentum BCS-like pairing and finite-momentum FFLO-like pairing, and assuming the short-junction limit. For both pairing types we find that the current is proportional to the normal-state junction conductivity, with a proportionality coefficient that shows quantitative differences between the two pairing mechanisms. The current for the BCS-like pairing is found to be independent of the chemical potential, whereas the current for the FFLO-like pairing is not.
en
dc.format.extent
7 Seiten
dc.subject
josephson effect
en
dc.subject
Weyl SNS junction
en
dc.subject
Weyl semimetal
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
Josephson effect in a Weyl SNS junction
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
064511
dcterms.bibliographicCitation.doi
10.1103/PhysRevB.95.064511
dcterms.bibliographicCitation.journaltitle
Physical Review B
dcterms.bibliographicCitation.number
6
dcterms.bibliographicCitation.volume
95
dcterms.bibliographicCitation.url
https://doi.org/10.1103/PhysRevB.95.064511
dcterms.rightsHolder.note
Copyright des Verlages
dcterms.rightsHolder.url
http://journals.aps.org/copyrightFAQ.html#post
refubium.affiliation
Physik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.issn
1098-0121 (Print)
dcterms.isPartOf.issn
1550-235X (Online)