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  Electronic structure of a mesoscopic superconducting disk: Quasiparticle tunneling between the giant vortex core and the disk edge

Samokhvalov V, A., Shereshevskii, I. A., Vdovicheva, N. K., Taupin, M., Khaymovich, I. M., Pekola, J. P., et al. (2019). Electronic structure of a mesoscopic superconducting disk: Quasiparticle tunneling between the giant vortex core and the disk edge. Physical Review B, 99(13): 134512. doi:10.1103/PhysRevB.99.134512.

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Samokhvalov V, A.1, Author
Shereshevskii, I. A.1, Author
Vdovicheva, N. K.1, Author
Taupin, M.1, Author
Khaymovich, Ivan M.2, Author           
Pekola, J. P.1, Author
Mel'nikov, A. S.1, Author
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1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 MPIPKS: Superconductivity and magnetism
 Abstract: The electronic structure of the giant vortex states in a mesoscopic superconducting disk is studied in a dirty limit using the Usadel approach. The local density of states profiles are shown to be strongly affected by the effect of quasiparticle (QP) tunneling between the states localized in the vortex core and the ones bound to the sample edge. Decreasing temperature leads to a crossover between the edge-dominated and core-dominated regimes in the magnetic field dependence of the tunneling conductance. This crossover is discussed in the context of the efficiency of quasiparticle cooling by the magnetic-field-induced QP traps in various mesoscopic superconducting devices.

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 Dates: 2019-04-152019-04-01
 Publication Status: Issued
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 99 (13) Sequence Number: 134512 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008