Nickel segment-length dependent magnetic properties of Au-Ni-Au nanowires at low temperature fabricated by electrochemical deposition

초록

Segmented wires (Au-Ni-Au) were synthesized by electrochemical deposition. Magnetic study was performed at 6 kOe field applied parallel to the wire long axis at 300 K and 2 K. Coercivity (H-c) and saturation magnetization (M-s) as a function of segment length (l) were constant for longer l (5 <= l <= 10 mu m) at 300 K and 2 K. However, a peak in H-c was observed for l=2.4 mu m at 300 K, whereas a decrease in H-c was found for shorter l. M-s followed a decreasing trend with decreasing segment length from 2.4 mu m to 200 nm. (C) 2013 Elsevier Inc. All rights reserved.

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