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Article: Parity of specular Andreev reflection under a mirror operation in a zigzag graphene ribbon

TitleParity of specular Andreev reflection under a mirror operation in a zigzag graphene ribbon
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. 20, article. no. 205418 , p. 205418-1-205418-5 How to Cite?
AbstractIt is known that the parity of a reflection amplitude can either be even or odd under a mirror operation. Up to now to our knowledge, all the parities of a reflection amplitude in the one-mode energy region have been even under a mirror operation. In this paper, we give an example of odd parity for Andreev reflection (AR) in a three-terminal graphene-supercondutor hybrid system. We found that the parity is even for the Andreev retroreflection and odd for specular Andreev reflection (SAR). We attribute this remarkable phenomenon to the distinct topology of the band structure of graphene and the specular Andreev reflection involving two energy bands with different parity symmetry. As a result of the odd parity of SAR, the SAR probability of a four-terminal system with two superconducting leads (two reflection interfaces) can be 0 even when the system is asymmetric due to the quantum interference of two ARs. © 2011 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/135371
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
Funding AgencyGrant Number
RGCHKU 705409P
University Grant Council of the Government of HKSARAoE/P-04/08
NSF-China10 974 236
10 821 403
Beijing Institute of Technology
Funding Information:

We gratefully acknowledge the financial support from RGC (HKU 705409P) and University Grant Council (Contract No. AoE/P-04/08) of the Government of HKSAR, from NSF-China under Grant Nos. 10 974 236 and 10 821 403, and excellent young scholars research fund of Beijing Institute of Technology.

Grants

 

DC FieldValueLanguage
dc.contributor.authorXing, Yen_US
dc.contributor.authorWang, Jen_US
dc.contributor.authorSun, QF-
dc.date.accessioned2011-07-27T01:34:13Z-
dc.date.available2011-07-27T01:34:13Z-
dc.date.issued2011en_US
dc.identifier.citationPhysical Review B (Condensed Matter and Materials Physics), 2011, v. 83 n. 20, article. no. 205418 , p. 205418-1-205418-5en_US
dc.identifier.issn1098-0121-
dc.identifier.urihttp://hdl.handle.net/10722/135371-
dc.description.abstractIt is known that the parity of a reflection amplitude can either be even or odd under a mirror operation. Up to now to our knowledge, all the parities of a reflection amplitude in the one-mode energy region have been even under a mirror operation. In this paper, we give an example of odd parity for Andreev reflection (AR) in a three-terminal graphene-supercondutor hybrid system. We found that the parity is even for the Andreev retroreflection and odd for specular Andreev reflection (SAR). We attribute this remarkable phenomenon to the distinct topology of the band structure of graphene and the specular Andreev reflection involving two energy bands with different parity symmetry. As a result of the odd parity of SAR, the SAR probability of a four-terminal system with two superconducting leads (two reflection interfaces) can be 0 even when the system is asymmetric due to the quantum interference of two ARs. © 2011 American Physical Society.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/-
dc.relation.ispartofPhysical Review B (Condensed Matter and Materials Physics)en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.-
dc.titleParity of specular Andreev reflection under a mirror operation in a zigzag graphene ribbonen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=83&issue=20, art. no. 205418 &spage=205418&epage=1&date=2011&atitle=Parity+of+specular+Andreev+reflection+under+a+mirror+operation+in+a+zigzag+graphene+ribbon-
dc.identifier.emailXing, Y: xingyx@hku.hken_US
dc.identifier.emailWang, J: jianwang@hku.hken_US
dc.identifier.authorityXing, Y=rp00819en_US
dc.identifier.authorityWang, J=rp00799en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.83.205418-
dc.identifier.scopuseid_2-s2.0-79961120795-
dc.identifier.hkuros186862en_US
dc.identifier.volume83-
dc.identifier.issue20-
dc.identifier.spage205418-1-
dc.identifier.epage205418-5-
dc.identifier.isiWOS:000290759900012-
dc.relation.projectTheory, Modeling, and Simulation of Emerging Electronics-
dc.relation.projectTheoretical investigation of dynamic response, fluctuations, and charge relaxations in disordered mesoscopic conductors.-

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