Superconductivity in ultrasmall metallic particles
Date
2000
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Publisher
Springer
Volume
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Pages
371 - 380
Language
English
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2
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14
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Series
NATO Science Series; 559
Abstract
Recent single electron transport experiments in nanometer size samples renewed the question about the lower limits of the size of superconductors, and the crossover from superconducting to normal state. In order to give answers to these questions, a pairing Hamiltonian for fixed number of particles is studied including the degeneracy of levels around the Fermi energy. For d-fold degenerate states we find that the ratio of two successive parity parameters Δ p is nearly 1 + l/d.
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Book Title
Quantum mesoscopic phenomena and mesoscopic devices in microelectronics