Parity effect in mesoscopic and nanoscopic superconducting particles

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dc.citation.epage50en_US
dc.citation.issueNumber1-4en_US
dc.citation.spage46en_US
dc.citation.volumeNumber352en_US
dc.contributor.authorKulik, I. O.en_US
dc.contributor.authorBoyaci, H.en_US
dc.contributor.authorGedik, Z.en_US
dc.date.accessioned2016-02-08T10:35:32Z
dc.date.available2016-02-08T10:35:32Z
dc.date.issued2001en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractSuperconductivity in small metallic specimens is studied with regard to the size dependence of the parity gap (ΔP), a parameter distinguishing between the energy of even and odd number of electrons in the granule. ΔP is shown to be an increasing function of level spacing δ. The energy gap of superconductor Δ, on the other hand, decreases with increasing δ and vanishes at δ = δc which is of the order of Δ. However, non-zero value of ΔP persists above δc in a gapless superconducting-insulating state. Level degeneracy in small specimens having perfect geometry changes the size dependence of the parity gap, the Josephson effect, and flux quantization. Parity gap is evaluated using an interpolation procedure between the continuum limit (δ ≪ Δ), the moderate mesoscopic regime (δ ∼ Δ), and the nanoscopic scale (δ ≫ Δ), for which an exact solution to the pairing problem is provided with the numeric diagonalization of system Hamiltonian in a small metallic clusteren_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:35:32Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2001en
dc.identifier.doi10.1016/S0921-4534(00)01673-7en_US
dc.identifier.issn0921-4534
dc.identifier.urihttp://hdl.handle.net/11693/24871
dc.language.isoEnglishen_US
dc.publisherElsevier B.V.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/S0921-4534(00)01673-7en_US
dc.source.titlePhysica C: Superconductivity and its Applicationsen_US
dc.subjectGapless stateen_US
dc.subjectMesoscopic superconductivityen_US
dc.subjectParity effecten_US
dc.subjectParity gapen_US
dc.subjectPseudogapen_US
dc.subjectStrongly correlated systemsen_US
dc.subjectContinuum mechanicsen_US
dc.subjectElectron transitionsen_US
dc.subjectEnergy gapen_US
dc.subjectFermi levelen_US
dc.subjectHamiltoniansen_US
dc.subjectInterpolationen_US
dc.subjectOptical correlationen_US
dc.subjectMesoscopic superconductivityen_US
dc.subjectParity effecten_US
dc.subjectPseudogapen_US
dc.subjectSuperconducting magnetsen_US
dc.titleParity effect in mesoscopic and nanoscopic superconducting particlesen_US
dc.typeArticleen_US

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