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Article: Andreev Reflection Enhanced Aharonov-Bohm Oscillations in Conductance of a Mesoscopic Normal Metal Ring Connected to Normal and Superconducting Leads

TitleAndreev Reflection Enhanced Aharonov-Bohm Oscillations in Conductance of a Mesoscopic Normal Metal Ring Connected to Normal and Superconducting Leads
Authors
KeywordsAndreev Reflection
Mesoscopic Ring
Normal-Superconducting Hybrid Structure
Issue Date1998
PublisherInstitute of Pure and Applied Physics. The Journal's web site is located at http://www.ipap.jp/jpsj/index.htm
Citation
Journal Of The Physical Society Of Japan, 1998, v. 67 n. 5, p. 1688-1692 How to Cite?
AbstractWe investigate the conductance through an Aharonov-Bohm normal metal ring connected to normal and superconducting leads. It is shown that, due to the Andreev reflection at the normal superconducting phase boundary, the conductance maxima could be enhanced to be twice as large as that for the ring connected with normal conducting leads. The voltage bias may suppress this conductance enhancement. However, the periodicity of the oscillating conductance in flux is not altered by the presence of the superconducting contact. The discussion is also extended to include the impurity scattering effect and the multichannel case. Quite interestingly, the period halving could be induced by the impurity scattering even in one-dimensional normal superconducting hybrid structures.
Persistent Identifierhttp://hdl.handle.net/10722/174766
ISSN
2015 Impact Factor: 1.559
2015 SCImago Journal Rankings: 0.720
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorZhu, JXen_US
dc.contributor.authorWang, ZDen_US
dc.date.accessioned2012-11-26T08:47:19Z-
dc.date.available2012-11-26T08:47:19Z-
dc.date.issued1998en_US
dc.identifier.citationJournal Of The Physical Society Of Japan, 1998, v. 67 n. 5, p. 1688-1692en_US
dc.identifier.issn0031-9015en_US
dc.identifier.urihttp://hdl.handle.net/10722/174766-
dc.description.abstractWe investigate the conductance through an Aharonov-Bohm normal metal ring connected to normal and superconducting leads. It is shown that, due to the Andreev reflection at the normal superconducting phase boundary, the conductance maxima could be enhanced to be twice as large as that for the ring connected with normal conducting leads. The voltage bias may suppress this conductance enhancement. However, the periodicity of the oscillating conductance in flux is not altered by the presence of the superconducting contact. The discussion is also extended to include the impurity scattering effect and the multichannel case. Quite interestingly, the period halving could be induced by the impurity scattering even in one-dimensional normal superconducting hybrid structures.en_US
dc.languageengen_US
dc.publisherInstitute of Pure and Applied Physics. The Journal's web site is located at http://www.ipap.jp/jpsj/index.htmen_US
dc.relation.ispartofJournal of the Physical Society of Japanen_US
dc.subjectAndreev Reflectionen_US
dc.subjectMesoscopic Ringen_US
dc.subjectNormal-Superconducting Hybrid Structureen_US
dc.titleAndreev Reflection Enhanced Aharonov-Bohm Oscillations in Conductance of a Mesoscopic Normal Metal Ring Connected to Normal and Superconducting Leadsen_US
dc.typeArticleen_US
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_US
dc.identifier.authorityWang, ZD=rp00802en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1143/JPSJ.67.1688-
dc.identifier.scopuseid_2-s2.0-0032344550en_US
dc.identifier.hkuros32388-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032344550&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume67en_US
dc.identifier.issue5en_US
dc.identifier.spage1688en_US
dc.identifier.epage1692en_US
dc.identifier.isiWOS:000073878900035-
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridZhu, JX=7405688302en_US
dc.identifier.scopusauthoridWang, ZD=14828459100en_US

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