uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Chiral d-wave superconducting state in the core of a doubly quantized s-wave vortex in graphene
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Theory.
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 88, no 10, 104506- p.Article in journal (Refereed) Published
Abstract [en]

We show that the intrinsic chiral (d(x2-y2) +/- id(xy))-wave superconducting pairing in doped graphene is significantly strengthened in the core region of a doubly quantized s-wave superconducting vortex produced in a graphene-superconductor hybrid structure. The chiral d-wave state is induced by the proximity effect, which transfers the center-of-mass angular momentum of the s-wave vortex to the orbital angular momentum of the chiral d-wave Cooper pairs. The proximity effect is enhanced by the circular geometry of the vortex and we find a [1 + (T -T-c,T-J)(2)](-1) temperature dependence for the chiral d-wave core amplitude, where T-c,T-J is its intrinsic bulk transition temperature. We further propose to detect the chiral d-wave state by studying the temperature dependence of the low-energy local density of states in the vortex core, which displays a sudden radial change as a function of the strength of the d-wave core state.

Place, publisher, year, edition, pages
2013. Vol. 88, no 10, 104506- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-208644DOI: 10.1103/PhysRevB.88.104506ISI: 000324229400006OAI: oai:DiVA.org:uu-208644DiVA: diva2:654056
Available from: 2013-10-07 Created: 2013-10-07 Last updated: 2013-10-07Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Black-Schaffer, Annica M.
By organisation
Materials Theory
In the same journal
Physical Review B. Condensed Matter and Materials Physics
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 169 hits
ReferencesLink to record
Permanent link

Direct link