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Article: Spin-bias driven magnetization reversal and nondestructive detection in a single molecular magnet

TitleSpin-bias driven magnetization reversal and nondestructive detection in a single molecular magnet
Authors
KeywordsPhysics
Issue Date2009
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 2009, v. 79 n. 17 How to Cite?
AbstractThe magnetization reversal in a single molecular magnet (SMM) weakly coupled to an electrode with spin-dependent splitting of chemical potentials (spin bias) is theoretically investigated by means of the rate equation. A microscopic mechanism for the reversal is demonstrated by the avalanche dynamics at the reversal point. The magnetization as a function of the spin bias shows hysteresis loops tunable by the gate voltage and varying with temperature. The nondestructive measurement to the orientation of giant spin in SMM is presented by measuring the fully polarized electric current in the response to a small spin bias. For Mn12 ac molecule, its small transverse anisotropy only slightly violates the results above. The situation when there is an angle between the easy axis of the SMM and the spin-quantization direction of the electrode is also studied. © 2009 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/59664
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLu, HZen_HK
dc.contributor.authorZhou, Ben_HK
dc.contributor.authorShen, SQen_HK
dc.date.accessioned2010-05-31T03:54:45Z-
dc.date.available2010-05-31T03:54:45Z-
dc.date.issued2009en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2009, v. 79 n. 17en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59664-
dc.description.abstractThe magnetization reversal in a single molecular magnet (SMM) weakly coupled to an electrode with spin-dependent splitting of chemical potentials (spin bias) is theoretically investigated by means of the rate equation. A microscopic mechanism for the reversal is demonstrated by the avalanche dynamics at the reversal point. The magnetization as a function of the spin bias shows hysteresis loops tunable by the gate voltage and varying with temperature. The nondestructive measurement to the orientation of giant spin in SMM is presented by measuring the fully polarized electric current in the response to a small spin bias. For Mn12 ac molecule, its small transverse anisotropy only slightly violates the results above. The situation when there is an angle between the easy axis of the SMM and the spin-quantization direction of the electrode is also studied. © 2009 The American Physical Society.en_HK
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.subjectPhysics-
dc.titleSpin-bias driven magnetization reversal and nondestructive detection in a single molecular magneten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=79 &issue=17 article no. 174419&spage=&epage=&date=2009&atitle=Spin-bias+driven+magnetization+reversal+and+nondestructive+detection+in+a+single+molecular+magneten_HK
dc.identifier.emailLu, HZ: luhz@hku.hken_HK
dc.identifier.emailShen, SQ: sshen@hkucc.hku.hken_HK
dc.identifier.authorityLu, HZ=rp01599en_HK
dc.identifier.authorityShen, SQ=rp00775en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.79.174419en_HK
dc.identifier.scopuseid_2-s2.0-67049134251en_HK
dc.identifier.hkuros161425en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67049134251&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume79en_HK
dc.identifier.issue17en_HK
dc.identifier.eissn1550-235X-
dc.identifier.isiWOS:000266501100072-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLu, HZ=24376662200en_HK
dc.identifier.scopusauthoridZhou, B=7401906664en_HK
dc.identifier.scopusauthoridShen, SQ=7403431266en_HK

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