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arXiv · cond-mat/9812042

Pauli-Limited Superconductivity in Small Grains

M. C. Bonsager·A. H. MacDonald
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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.

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M. C. Bonsager, A. H. MacDonald. 1999-03-18. Pauli-Limited Superconductivity in Small Grains. https://doi.org/10.1016/s0038-1098(99)00321-x

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