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Article: Nonexponential relaxation and quantum tunnel splitting in the molecular magnet Fe8

TitleNonexponential relaxation and quantum tunnel splitting in the molecular magnet Fe8
Authors
Chen, ZDShen, SQ
KeywordsPhysics
Issue Date2003
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter), 2003, v. 67 n. 1, article no. 012408 , p. 1-4 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevB.67.012408
AbstractMagnetic relaxation in molecular magnets under a sweeping field is studied by taking into account local stray fields. It is found that the randomness of local stray field leads to a distribution of the relaxation rate which subsequently makes the relaxation deviate from the exponential law as predicted by the Landau-Zener model such that the Landau-Zener method needs to be revised to deduce an exact tunneling splitting. The tunneling splitting and distribution width of local stray fields are derived from the experimental data for molecular magnets Fe8.
Persistent Identifierhttp://hdl.handle.net/10722/43373
ISSN
0163-1829
ISI Accession Number ID
WOS:000180830400013
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorChen, ZDen_HK
dc.contributor.authorShen, SQen_HK
dc.date.accessioned2007-03-23T04:44:29Z-
dc.date.available2007-03-23T04:44:29Z-
dc.date.issued2003en_HK
dc.identifier.citationPhysical Review B (Condensed Matter), 2003, v. 67 n. 1, article no. 012408 , p. 1-4-
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43373-
dc.description.abstractMagnetic relaxation in molecular magnets under a sweeping field is studied by taking into account local stray fields. It is found that the randomness of local stray field leads to a distribution of the relaxation rate which subsequently makes the relaxation deviate from the exponential law as predicted by the Landau-Zener model such that the Landau-Zener method needs to be revised to deduce an exact tunneling splitting. The tunneling splitting and distribution width of local stray fields are derived from the experimental data for molecular magnets Fe8.en_HK
dc.format.extent58905 bytes-
dc.format.extent34304 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)-
dc.rightsCopyright 2003 by The American Physical Society. This article is available online at https://doi.org/10.1103/PhysRevB.67.012408-
dc.subjectPhysicsen_HK
dc.titleNonexponential relaxation and quantum tunnel splitting in the molecular magnet Fe8en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=67&issue=1&spage=012408:1&epage=4&date=2003&atitle=Nonexponential+relaxation+and+quantum+tunnel+splitting+in+the+molecular+magnet+Fe8en_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.67.012408en_HK
dc.identifier.scopuseid_2-s2.0-0037284557en_HK
dc.identifier.hkuros75849-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037284557&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume67en_HK
dc.identifier.issue1en_HK
dc.identifier.spagearticle no. 012408, p. 1-
dc.identifier.epagearticle no. 012408, p. 4-
dc.identifier.isiWOS:000180830400013-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChen, ZD=7409486778en_HK
dc.identifier.scopusauthoridShen, SQ=7403431266en_HK
dc.identifier.issnl0163-1829-

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