Controlled Cu content of electrodeposited CoCu nanowires through pulse features and investigations of microstructures and magnetic properties

نویسندگانمحمد الماسی کاشی-عبد العلی رمضانی-فاطمه عادل نیا نجف آباد-زهرا حیدری
نشریهAPPL SURF SCI
ارائه به نام دانشگاهدانشگاه کاشان
نوع مقالهFull Paper
تاریخ انتشار۲۰۱۱-۶-۰۱
رتبه نشریهISI
نوع نشریهالکترونیکی
کشور محل چاپایران
نمایه نشریهISI ,SCOPUS

چکیده مقاله

CoCu alloy nanowire arrays embedded in anodic alumina template were fabricated by ac pulse electrodeposition. Different off-times between pulses in an electrolyte with constant concentration of Co+2 and Cu+2 and acidity of 4 were employed. The effect of deposition parameters on the alloy contents, microstructures and magnetic properties of CoxCu1−x nanowires were studied. It is shown that Co content decreased by increasing the off-time between pulses in a wide range (x = 0.53–0.07). These results are in consistence with saturation magnetization, which was reduced with increase in the off-time between pulses. It was also found that by optimizing the off-times, it is possible to fabricate CoCu nanowires with mixed phase of hcp Co, fcc Cu and fcc CoCu crystal phase