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Titolo:
PHASE-COHERENT CONDUCTANCE OF A SUPERCONDUCTOR NORMAL-METAL QUANTUM INTERFEROMETER
Autore:
VOLKOV AF; ZAITSEV AV;
Indirizzi:
RUSSIAN ACAD SCI,INST RADIO ENGN & ELECTR,MOKHOVAYA ST 11 MOSCOW 103907 RUSSIA
Titolo Testata:
Physical review. B, Condensed matter
fascicolo: 14, volume: 53, anno: 1996,
pagine: 9267 - 9276
SICI:
0163-1829(1996)53:14<9267:PCOASN>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEMICONDUCTOR JUNCTIONS; MICROJUNCTIONS; RESISTANCE; CONTACTS; BARRIERS; VOLTAGE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
39
Recensione:
Indirizzi per estratti:
Citazione:
A.F. Volkov e A.V. Zaitsev, "PHASE-COHERENT CONDUCTANCE OF A SUPERCONDUCTOR NORMAL-METAL QUANTUM INTERFEROMETER", Physical review. B, Condensed matter, 53(14), 1996, pp. 9267-9276

Abstract

A theory of the subgap conductance of a hybrid superconductor-normal-metal (S/N) quantum interferometer consisting of two tunnel junctions (S/N) in contact with an N layer is developed. The oscillatory dependence of the conductance of the system G on the phase difference betweensuperconductors phi is shown to be due to the proximity effect, i.e.,to the penetration of the condensate into the N region. The G(phi) dependence is found for the cases of both weak and strong proximity effects. This dependence can radically change its shape form qualitativelywhen the voltage is varied. The amplitude of the conductance oscillations appears to be large in the case of strong proximity effect. Different layouts are considered including the cases when there is the third tunnel junction or point contact between the N conductor and the N electrode.

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Documento generato il 19/09/20 alle ore 11:57:02