Thermodynamic properties of a small superconducting grain
نویسندگان
چکیده
منابع مشابه
A small superconducting grain in the canonical ensemble
By means of the Lanczos method we analyze superconducting correlations in ultrasmall grains at fixed particle number. We compute the ground state properties and the excitation gap of the pairing Hamiltonian as a function of the level spacing δ. Both quantities turn out to be parity dependent and universal functions of the ratio δ/∆ (∆ is the BCS gap). We then characterize superconductivity in t...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2001
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.63.214518