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Article: Quantum Andreev effect in two-dimensional HgTe/CdTe quantum well/superconductor systems

TitleQuantum Andreev effect in two-dimensional HgTe/CdTe quantum well/superconductor systems
Authors
Issue Date2011
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter and Materials Physics), 2011, v. 83 n. 11, article no. 115315, p. 115315-1-115315-5 How to Cite?
AbstractThe Andreev reflection (AR) in 2D HgTe/CdTe quantum well-superconductor hybrid systems is studied. A quantized AR with AR coefficient equal to one is predicted, which is due to the multi-Andreev reflection near the interface of the hybrid system. Importantly, this quantized AR is not only universal, i.e., independent of any system parameters and quality of the coupling of the hybrid system, it is also robust against disorder as well. As a result of this quantum Andreev effect, the conductance exhibits a quantized plateau when the external bias is less the superconductor gap. © 2011 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/135378
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
Funding AgencyGrant Number
NSFC10974236
10974043
11074174
government of HKSAR, RGCHKU 704308P
Funding Information:

This work was financially supported by NSFC under Grant Nos. 10974236, 10974043, and 11074174, and a RGC Grant (No. HKU 704308P) from the government of HKSAR.

Grants

 

DC FieldValueLanguage
dc.contributor.authorSun, QFen_US
dc.contributor.authorLi, YXen_US
dc.contributor.authorLong, Wen_US
dc.contributor.authorWang, J-
dc.date.accessioned2011-07-27T01:34:16Z-
dc.date.available2011-07-27T01:34:16Z-
dc.date.issued2011en_US
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2011, v. 83 n. 11, article no. 115315, p. 115315-1-115315-5en_US
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10722/135378-
dc.description.abstractThe Andreev reflection (AR) in 2D HgTe/CdTe quantum well-superconductor hybrid systems is studied. A quantized AR with AR coefficient equal to one is predicted, which is due to the multi-Andreev reflection near the interface of the hybrid system. Importantly, this quantized AR is not only universal, i.e., independent of any system parameters and quality of the coupling of the hybrid system, it is also robust against disorder as well. As a result of this quantum Andreev effect, the conductance exhibits a quantized plateau when the external bias is less the superconductor gap. © 2011 American Physical Society.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)en_US
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleQuantum Andreev effect in two-dimensional HgTe/CdTe quantum well/superconductor systemsen_US
dc.typeArticleen_US
dc.identifier.emailWang, J: jianwang@hku.hken_US
dc.identifier.authorityWang, J=rp00799en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.83.115315-
dc.identifier.scopuseid_2-s2.0-79961054151-
dc.identifier.hkuros187855en_US
dc.identifier.volume83en_US
dc.identifier.issue11-
dc.identifier.spage115315-1en_US
dc.identifier.epage115315-5en_US
dc.identifier.isiWOS:000288242800009-
dc.publisher.placeUnited States-
dc.relation.projectThe first principle study of local heating and heat transport in nano-devices-

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