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Article: Anomaly of zero-bias conductance peaks in ferromagnet/d-wave superconductor junctions

TitleAnomaly of zero-bias conductance peaks in ferromagnet/d-wave superconductor junctions
Authors
KeywordsPhysics
Issue Date2001
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2001, v. 63 n. 14, p. 1445201-1445206 How to Cite?
AbstractThe Blonder-Tinkham-Klapwijk approach is applied to studying spin-polarized quasiparticle transport in ferromagnet (FM)/d-wave superconductor (SC) junctions by taking into account the roughness of the interfacial barrier, broken time-reversal symmetry (BTRS) states near the surface of the SC, and exchange interactions in the FM. It is shown that (1) the exchange splitting in the FM decreases the height of the zero-bias conductance peak (ZBCP) and may induce a zero-bias conductance dip (ZBCD), (2) the presence of the BTRS states in the SC may make the ZBCP split into two peaks, and (3) the interface roughness obstructs the ZBCP splitting and decreases the height of the ZBCP. The calculated results can account for the ZBCD observed experimentally in La 2/3Ba 1/3MnO 3/DyBa 2Cu 3O 7 and La 2/3Ba 1/3MnO 3/YBa 2Cu 3O 7-δ junctions.
Persistent Identifierhttp://hdl.handle.net/10722/43324
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDong, ZCen_HK
dc.contributor.authorXing, DYen_HK
dc.contributor.authorWang, ZDen_HK
dc.contributor.authorZheng, Zen_HK
dc.contributor.authorDong, Jen_HK
dc.date.accessioned2007-03-23T04:43:35Z-
dc.date.available2007-03-23T04:43:35Z-
dc.date.issued2001en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2001, v. 63 n. 14, p. 1445201-1445206en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43324-
dc.description.abstractThe Blonder-Tinkham-Klapwijk approach is applied to studying spin-polarized quasiparticle transport in ferromagnet (FM)/d-wave superconductor (SC) junctions by taking into account the roughness of the interfacial barrier, broken time-reversal symmetry (BTRS) states near the surface of the SC, and exchange interactions in the FM. It is shown that (1) the exchange splitting in the FM decreases the height of the zero-bias conductance peak (ZBCP) and may induce a zero-bias conductance dip (ZBCD), (2) the presence of the BTRS states in the SC may make the ZBCP split into two peaks, and (3) the interface roughness obstructs the ZBCP splitting and decreases the height of the ZBCP. The calculated results can account for the ZBCD observed experimentally in La 2/3Ba 1/3MnO 3/DyBa 2Cu 3O 7 and La 2/3Ba 1/3MnO 3/YBa 2Cu 3O 7-δ junctions.en_HK
dc.format.extent104596 bytes-
dc.format.extent45056 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_HK
dc.rightsPhysical Review B (Condensed Matter and Materials Physics). Copyright © American Physical Society.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleAnomaly of zero-bias conductance peaks in ferromagnet/d-wave superconductor junctionsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=63&issue=14&spage=144520:1&epage=6&date=2001&atitle=Anomaly+of+zero-bias+conductance+peaks+in+ferromagnet/d-wave+superconductor+junctionsen_HK
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_HK
dc.identifier.authorityWang, ZD=rp00802en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.63.144520en_HK
dc.identifier.scopuseid_2-s2.0-0034909483en_HK
dc.identifier.hkuros63877-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034909483&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume63en_HK
dc.identifier.issue14en_HK
dc.identifier.spage1445201en_HK
dc.identifier.epage1445206en_HK
dc.identifier.isiWOS:000168059800100-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridDong, ZC=7402274238en_HK
dc.identifier.scopusauthoridXing, DY=7202670397en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK
dc.identifier.scopusauthoridZheng, Z=7403007411en_HK
dc.identifier.scopusauthoridDong, J=7403365671en_HK

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