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Mohammad Almasi Kashi

Mohammad Almasi Kashi

Professor

College: faculty of Physics

Department: Condensed Matter Physics

Degree: Ph.D

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Mohammad Almasi Kashi

Professor Mohammad Almasi Kashi

College: faculty of Physics - Department: Condensed Matter Physics Degree: Ph.D |

First orderreversalcurveinvestigationofthehardandsoftmagnetic phases ofannealedCoFeCunanowirearrays

Authorsمحمد الماسی کاشی,عبد العلی رمضانی,الهام گل افشان ,منا عارف پور ,الهام جعفری خمسه
JournalPHYSICA B
Page number46
Volume number429
Paper TypeFull Paper
Published At2013-07-11
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexJCR ,SCOPUS

Abstract

(CoFe)1xCux (x¼0.12–0.84) nanowirearrayswereac-pulseelectrodepositedintoanodicaluminum oxidetemplates.TheelectrodepositionwasperformedinaconstantelectrolytewhileCucontentwas controlled byoff-timebetweenpulses.Nanowireswith30nmdiameterandthecertainlengthswiththe both bcc-CoFeandfcc-Cuphaseswereobtained.Magnetizationandcoercivityofthenanowires decreased withincreasingtheCucontent.Annealingimprovedthecoercivityandaremarkableincrease in magnetizationofnanowireswithhighCucontentswasobserved.Atwo-phasetreatmentwasseenfor annealed sampleswithhighCucontents.Firstorderreversalcurvesshowedahardmagneticphasewith almost constantmagneticpropertiesandcoercivityof 2500Oe.Theresultsshowedthatmainsourceof the variousmagneticbehaviorsofthesamplesmaybeattributedtoincreaseinsoftmagneticphase. A singledomaintreatmentwithanarrowinteracting field andcoercive field distributionswasalso observed fortheannealedsampleswithhighCucontent.