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Article: AC response of an atomic tunnel junction

TitleAC response of an atomic tunnel junction
Authors
KeywordsPhysics
Issue Date2000
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter and Materials Physics), 2000, v. 61 n. 19, p. 13121-13126 How to Cite?
AbstractBy combining density functional analysis with the solution of a three-dimensional quantum scattering problem, and applying appropriate ac transport theory, we investigated the ac transport response of Si atomic tunnel junctions in the resonance tunneling regime. Our results show that transmission channels of both the leads and the atomic section contribute to the dynamic conductance. The ac response is found to be determined by the average channel transmission weighted by the corresponding density of states, explaining a counterintuitive result that at resonance tunneling the ac response may be capacitivelike. As the ac frequency is increased, the resonance peak of dynamic conductance can be split into two, a phenomenon that can be explained analytically.
Persistent Identifierhttp://hdl.handle.net/10722/43312
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZheng, Wen_HK
dc.contributor.authorWei, Yen_HK
dc.contributor.authorWang, Jen_HK
dc.contributor.authorGuo, Hen_HK
dc.date.accessioned2007-03-23T04:43:21Z-
dc.date.available2007-03-23T04:43:21Z-
dc.date.issued2000en_HK
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2000, v. 61 n. 19, p. 13121-13126en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43312-
dc.description.abstractBy combining density functional analysis with the solution of a three-dimensional quantum scattering problem, and applying appropriate ac transport theory, we investigated the ac transport response of Si atomic tunnel junctions in the resonance tunneling regime. Our results show that transmission channels of both the leads and the atomic section contribute to the dynamic conductance. The ac response is found to be determined by the average channel transmission weighted by the corresponding density of states, explaining a counterintuitive result that at resonance tunneling the ac response may be capacitivelike. As the ac frequency is increased, the resonance peak of dynamic conductance can be split into two, a phenomenon that can be explained analytically.en_HK
dc.format.extent85590 bytes-
dc.format.extent25600 bytes-
dc.format.extent5108 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titleAC response of an atomic tunnel junctionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=61&issue=19&spage=13121&epage=13126&date=2000&atitle=AC+response+of+an+atomic+tunnel+junctionen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.61.13121en_HK
dc.identifier.scopuseid_2-s2.0-2342440459-
dc.identifier.hkuros55934-
dc.identifier.isiWOS:000087159100099-

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