Magnetic behaviorofas-depositedandannealedCoFeandCoFeCu nanowirearraysbyac-pulseelectrodeposition

نویسندگانعبد العلی رمضانی-محمد الماسی کاشی-الهام گل افشان -منا عارف پور
نشریهJ CRYST GROWTH
نوع مقالهFull Paper
تاریخ انتشار۲۰۱۴-۵-۰۱
رتبه نشریهISI
نوع نشریهچاپی
کشور محل چاپایران
نمایه نشریهISI ,SCOPUS

چکیده مقاله

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.