Condensation Energy for a Two-Gap Superconducting State in Nanoparticles | Zendy

S. P. Kruchinin | Zendy; Hiroyuki Kawabe | Zendy; Hidemi Nagao | Zendy; Yasuhiro Nakazawa | Zendy

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Condensation Energy for a Two-Gap Superconducting State in Nanoparticles

Author(s) -

S. P. Kruchinin,

Hiroyuki Kawabe,

Hidemi Nagao,

Yasuhiro Nakazawa

Publication year - 2013

Publication title -

journal of nanoparticles

Language(s) - English

Resource type - Journals

eISSN - 2314-4858

pISSN - 2314-484X

DOI - 10.1155/2013/576232

Subject(s) - superconductivity , band gap , materials science , condensed matter physics , scattering , work (physics) , condensation , nanoparticle , physics , nanotechnology , quantum mechanics , thermodynamics

Recent technology and experiments have fabricated high-quality superconducting MgB2 nanoparticles. We investigate properties of two-gap superconductivity in nanosized systems by using atwo-sublevel model. In the present work, we analyze the results obtained for superconducting granulesin the case of multiband superconductivity. We discuss the finite size effect in multibandsuperconductors. A definition of the critical level spacing of two-gap superconductivity is also presented,and we discuss the condensation energy and the parity gap of two-gap superconductivityin relation to the size dependence of those properties with two bulk gaps and the effective pairscattering process between two sublevels

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