Pauli-Limited Superconductivity in Small Grains
arXiv:cond-mat/9812042 · doi:10.1016/S0038-1098(99)00321-X
Abstract
We report on an exploration of the mean-field phase diagram for Pauli-limited superconductivity in small metallic grains. Emphasis is placed on the crossover from the ultra-small grain limit where superconductivity disappears to the bulk thin-film limit as the single-particle level spacing in the grain decreases. We find that the maximum Zeeman coupling strength compatible with superconductivity increases with decreasing grain size, in spite of a monotonically decreasing condensation energy per unit volume.
4 pages of text, 6 figures
References in corpus (4)
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