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Article: Influence of spin transfer and contact resistance on measurement of the spin Hall effect

TitleInfluence of spin transfer and contact resistance on measurement of the spin Hall effect
Authors
KeywordsPhysics
Issue Date2003
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2003, v. 68 n. 11, p. 1153021-1153028 How to Cite?
AbstractWhen a longitudinal spin-unpolarized charge current flows in a thin slab of nonmagnetic metal with strong spin-orbit coupling of conduction electrons, a transverse spin Hall voltage can be generated between both edges of the sample, and the spin Hall voltage can be detected by the measurement of an ordinary Hall voltage produced in a transverse metal strip which connects both edges of the sample. In this paper, we discuss the influences of spin transfer and contact resistances between the longitudinal sample and the transverse metal strip on the measurement of the spin Hall voltage. We show that, due to the spin transfer between the longitudinal sample and the transverse metal strip, the magnitude of the spin Hall voltage produced in the longitudinal sample and the magnitude of the ordinary Hall voltage produced in the transverse metal strip and the relation between them will all strongly depend on the contact resistances, thus in order to detect the spin Hall voltage correctly through the measurement of the ordinary Hall voltage, the influences of spin transfer and contact resistance need to be taken into account.
Persistent Identifierhttp://hdl.handle.net/10722/43401
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHu, Len_HK
dc.contributor.authorGao, Jen_HK
dc.contributor.authorShen, SQen_HK
dc.date.accessioned2007-03-23T04:45:01Z-
dc.date.available2007-03-23T04:45:01Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2003, v. 68 n. 11, p. 1153021-1153028en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43401-
dc.description.abstractWhen a longitudinal spin-unpolarized charge current flows in a thin slab of nonmagnetic metal with strong spin-orbit coupling of conduction electrons, a transverse spin Hall voltage can be generated between both edges of the sample, and the spin Hall voltage can be detected by the measurement of an ordinary Hall voltage produced in a transverse metal strip which connects both edges of the sample. In this paper, we discuss the influences of spin transfer and contact resistances between the longitudinal sample and the transverse metal strip on the measurement of the spin Hall voltage. We show that, due to the spin transfer between the longitudinal sample and the transverse metal strip, the magnitude of the spin Hall voltage produced in the longitudinal sample and the magnitude of the ordinary Hall voltage produced in the transverse metal strip and the relation between them will all strongly depend on the contact resistances, thus in order to detect the spin Hall voltage correctly through the measurement of the ordinary Hall voltage, the influences of spin transfer and contact resistance need to be taken into account.en_HK
dc.format.extent93806 bytes-
dc.format.extent30720 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.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.titleInfluence of spin transfer and contact resistance on measurement of the spin Hall effecten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=68&issue=11&spage=115302:1&epage=8&date=2003&atitle=Influence+of+spin+transfer+and+contact+resistance+on+measurement+of+the+spin+Hall+effecten_HK
dc.identifier.emailShen, SQ: sshen@hkucc.hku.hken_HK
dc.identifier.authorityShen, SQ=rp00775en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.68.115302en_HK
dc.identifier.scopuseid_2-s2.0-0242595916en_HK
dc.identifier.hkuros84999-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0242595916&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume68en_HK
dc.identifier.issue11en_HK
dc.identifier.spage1153021en_HK
dc.identifier.epage1153028en_HK
dc.identifier.isiWOS:000185829300054-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridHu, L=7401557353en_HK
dc.identifier.scopusauthoridGao, J=37262424300en_HK
dc.identifier.scopusauthoridShen, SQ=7403431266en_HK

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