Even-odd electron number effects in a small superconducting island: Magnetic-field dependence

Autor:	Michael Tinkham, J. M. Hergenrother, Mark T. Tuominen, T. S. Tighe
Rok vydání:	1993
Předmět:	Superconductivity Physics Electron pair Tunnel effect Condensed matter physics Density of states Electron Parity (mathematics) Quantum tunnelling Magnetic field
Zdroj:	Physical Review B. 47:11599-11602
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.47.11599
Popis:	As a consequence of electron pairing, the free energy of a small superconducting island at low temperatures depends on whether it contains an even or odd number of electrons, i.e., on the parity of the total number of electrons. This produces a 2e periodicity in the tunneling current versus gate-induced charge characteristics of a superconducting single-electron tunneling transistor. Magnetic-field data show that the 2e to e periodicity crossover temperature decreases approximately as H 2 , in good agreement with our statistical mechanical parity model extended to include magnetic-field pair-breaking effects
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e00d457ee00c59eae516f14cfc6cd0b https://doi.org/10.1103/physrevb.47.11599 Zobrazit plný text záznamu