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Article: Berry Curvature Effects on Quasiparticle Dynamics in Superconductors

TitleBerry Curvature Effects on Quasiparticle Dynamics in Superconductors
Authors
Issue Date2021
Citation
Physical Review Letters, 2021, v. 126, n. 18, article no. 187001 How to Cite?
AbstractWe construct a theory for the semiclassical dynamics of superconducting quasiparticles by following their wave packet motion and reveal rich contents of Berry curvature effects in the phase space spanned by position and momentum. These Berry curvatures are traced back to the characteristics of superconductivity, including the nontrivial momentum-space geometry of superconducting pairing, the real-space supercurrent, and the charge dipole of quasiparticles. The Berry-curvature effects strongly influence the spectroscopic and transport properties of superconductors, such as the local density of states and the thermal Hall conductivity. As a model illustration, we apply the theory to study the twisted bilayer graphene with a dx2+y2+idxy superconducting gap function and demonstrate Berry-curvature induced effects.
Persistent Identifierhttp://hdl.handle.net/10722/311511
ISSN
2023 Impact Factor: 8.1
2023 SCImago Journal Rankings: 3.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Zhi-
dc.contributor.authorDong, Liang-
dc.contributor.authorXiao, Cong-
dc.contributor.authorNiu, Qian-
dc.date.accessioned2022-03-22T11:54:07Z-
dc.date.available2022-03-22T11:54:07Z-
dc.date.issued2021-
dc.identifier.citationPhysical Review Letters, 2021, v. 126, n. 18, article no. 187001-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/311511-
dc.description.abstractWe construct a theory for the semiclassical dynamics of superconducting quasiparticles by following their wave packet motion and reveal rich contents of Berry curvature effects in the phase space spanned by position and momentum. These Berry curvatures are traced back to the characteristics of superconductivity, including the nontrivial momentum-space geometry of superconducting pairing, the real-space supercurrent, and the charge dipole of quasiparticles. The Berry-curvature effects strongly influence the spectroscopic and transport properties of superconductors, such as the local density of states and the thermal Hall conductivity. As a model illustration, we apply the theory to study the twisted bilayer graphene with a dx2+y2+idxy superconducting gap function and demonstrate Berry-curvature induced effects.-
dc.languageeng-
dc.relation.ispartofPhysical Review Letters-
dc.titleBerry Curvature Effects on Quasiparticle Dynamics in Superconductors-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1103/PhysRevLett.126.187001-
dc.identifier.pmid34018795-
dc.identifier.scopuseid_2-s2.0-85105740733-
dc.identifier.volume126-
dc.identifier.issue18-
dc.identifier.spagearticle no. 187001-
dc.identifier.epagearticle no. 187001-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:000652838100009-

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