Magnetic behaviorofas-depositedandannealedCoFeandCoFeCu nanowirearraysbyac-pulseelectrodeposition

Authorsعبد العلی رمضانی-محمد الماسی کاشی-الهام گل افشان -منا عارف پور
JournalJ CRYST GROWTH
Paper TypeFull Paper
Published At۲۰۱۴-۵-۰۱
Journal GradeISI
Journal TypeTypographic
Journal CountryIran, Islamic Republic Of
Journal IndexISI ,SCOPUS

Abstract

CoFe andCoFeCuself-organizedalloynanowiresweregrownintoanodicaluminumoxidetemplateby potentiostaticmodeofac-pulseelectrodepositiontechniqueandsubsequentlyannealedat580 1C. The influence ofbathcomposition,off-timebetweenpulsesandannealingtreatmentontheCucontent, microstructureandmagneticpropertiesofCoFeCunanowirearrayshavebeendiscussed.Increasingthe off-time betweenpulsesdecreasedthecoercivityandsaturationmagnetizationoftheCoFeCunanowires due tosubstitutionofCoandFewithCuatomswhichresultedinelectrolessprocess.Coercivityand squarenessoftheannealedsamplesincreasedduetoimprovementofsamplescrystallinity.Magnetic measurements showedhighperpendicularmagneticanisotropyofthenanowireswitheasyaxisparallel to nanowiresaxis.X-raydiffractionresultsindicatedthatannealedCoFeCunanowireswerepolycrystal- line withtwodistinctCoFeandCuphases.