Volume 46, Number 6, June II 1999
|Page(s)||768 - 774|
|Section||Condensed matter: electronic structure, electrical, magneticand optical properties|
|Published online||01 September 2002|
Two-quasiparticle tunneling in all-superconducting single-electron transistors
Istituto di Fisica, Università di Catania - viale A. Doria 6, 95125 Catania,
Istituto Nazionale di Fisica della Materia (INFM) - Unità di Catania, Italy
Accepted: 19 April 1999
We study coherent two-quasiparticle tunneling in all-superconducting single-electron transistors in the framework of the tunneling Hamiltonian formalism. We discuss the interplay of the two-quasiparticle transfer and the superposition of charge states due to Cooper-pair transitions and calculate the tunneling rate. By using this rate in a master equation we compute complete current-voltage characteristics which we compare to recent experimental results.
PACS: 73.23.Hk – Coulomb blockade; single-electron tunneling / 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects
© EDP Sciences, 1999
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