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۱Magnetic Properties of Ni0.3Fe0.7 Alloy Nanowires
اطلاعات انتشار: Journal of Nano Structures، سوم،شماره۱، ۲۰۱۳، سال
تعداد صفحات: ۵
The effect of length variation on the magnetic properties of NiFe alloy nanowires electrodeposited into the alumina template was investigated. The diameter (45±2.5 nm) and length (~ 1.9, 7.12, 8.3, 9.5 and 13.3 μm) of the nanowires were estimated from scanning electron microscopy images. Energy dispersive spectroscopy results showed Ni3Fe7 composition of the alloy nanowires. The magnetic properties of the samples were investigated by vibrating sample magnetometer. It showed that with increasing the length of the nanowires from 1.9±0.1μm to 13.3±0.66 μm, coercivity reduced from 1050 Oe to 705 Oe and squareness reduced from 0.64 to 0.46. The results proved increasing the magnetostatic interaction between the nanowires with length. Progress toward the multi–domain behavior was predicted caused to drastically reduce in the coercivity.
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