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Article: Enhancement of parametric pumping due to Andreev reflection

TitleEnhancement of parametric pumping due to Andreev reflection
Authors
KeywordsPhysics engineering
Issue Date2001
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2001, v. 79 n. 24, p. 3977-3979 How to Cite?
AbstractWe report properties of parametric electron pumping in the presence of a superconducting lead. Due to a constructive interference between the direct reflection and the multiple Andreev reflection, the pumped current is greatly enhanced. For both quantum point contacts and double barrier structures at resonance, we obtain exact solutions in the weak pumping regime showing that I = 4I, which should be compared with the result of conductance GNS = 2GN. Numerical results are also provided for the strong pumping regime showing interesting Andreev assisted pumping behavior. © 2001 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/42463
ISSN
2015 Impact Factor: 3.142
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Jen_HK
dc.contributor.authorWei, Yen_HK
dc.contributor.authorWang, Ben_HK
dc.contributor.authorGuo, Hen_HK
dc.date.accessioned2007-01-29T08:50:33Z-
dc.date.available2007-01-29T08:50:33Z-
dc.date.issued2001en_HK
dc.identifier.citationApplied Physics Letters, 2001, v. 79 n. 24, p. 3977-3979en_HK
dc.identifier.issn0003-6951en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42463-
dc.description.abstractWe report properties of parametric electron pumping in the presence of a superconducting lead. Due to a constructive interference between the direct reflection and the multiple Andreev reflection, the pumped current is greatly enhanced. For both quantum point contacts and double barrier structures at resonance, we obtain exact solutions in the weak pumping regime showing that I = 4I, which should be compared with the result of conductance GNS = 2GN. Numerical results are also provided for the strong pumping regime showing interesting Andreev assisted pumping behavior. © 2001 American Institute of Physics.en_HK
dc.format.extent61572 bytes-
dc.format.extent27648 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysics engineeringen_HK
dc.titleEnhancement of parametric pumping due to Andreev reflectionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-6951&volume=79&issue=24&spage=3977&epage=3979&date=2001&atitle=Enhancement+of+parametric+pumping+due+to+Andreev+reflectionen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.1421236en_HK
dc.identifier.scopuseid_2-s2.0-0035842760-
dc.identifier.hkuros65413-
dc.identifier.isiWOS:000172489100024-

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