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Titolo:
Reproducibility and controllability of critical current for ramp-edge interface-modified junctions
Autore:
Horibe, M; Ito, T; Inagaki, Y; Ohnishi, K; Matsuda, G; Yoshinaga, Y; Maruyama, A; Fujimaki, A; Hayakawa, H;
Indirizzi:
Nagoya Univ, Dept Quantum Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan Nagoya Univ Nagoya Aichi Japan 4648603 a Ku, Nagoya, Aichi 4648603, Japan
Titolo Testata:
PHYSICA C
, volume: 357, anno: 2001,
parte:, 2
pagine: 1424 - 1427
SICI:
0921-4534(200108)357:<1424:RACOCC>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
JOSEPHSON-JUNCTIONS;
Keywords:
interface-modified junctions; empirical equation; reproducibility; controllability;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Horibe, M Nagoya Univ, Dept Quantum Engn, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648603, Japan Nagoya Univ Furo Cho Nagoya Aichi Japan 4648603 i 4648603, Japan
Citazione:
M. Horibe et al., "Reproducibility and controllability of critical current for ramp-edge interface-modified junctions", PHYSICA C, 357, 2001, pp. 1424-1427

Abstract

We have investigated the relationship between process parameters and junction characteristics (I-c, R-n) of interface-modified junctions (IMJs) made on MgO substrates, and have derived empirical equations from the obtained relationships. Thin and uniform tunnel barriers of IMJs were formed by ion irradiation and annealing. We chose accelerating voltage (V-acc), etching time (t(etch)) and deposition temperature (T-dep) as the process parameters for the control of critical current (I-c). We prepared four different samples fabricated in the same conditions, and examined the reproducibility and controllability of I-c. The obtained I(c)s were very close to the expected value, and the run-to-run 1 sigma -spread was 20% at 4.2 K. Furthermore, we could also control I-c of IMJ made on SrTiO3 substrates. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 06:43:55