We report the synthesis method and dimension-dependent magnetic properties of CoFe/Au barcode nanowire arrays. Well-separated multisegment nanowire arrays are synthesized by a pulsed electrodeposition process in a single bath. Samples with four different aspect ratios defined as the CoFe thicknesses to the nanowire diameter are prepared to investigate dimensional effects on the magnetic properties. It is evident except for very low aspect ratio case that each hysteresis loop shows a soft magnetic characteristic with an easy axis parallel to the nanowire axis. Magnetic reversal in most samples is primarily dominated by a transverse domain wall mode.
Bibliographical noteFunding Information:
ACKNOWLEDGMENT This work was supported by the Leap Research Program under Grant 2011-0016497 through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology.
- Magnetic barcode nanowire
- Magnetic reversal
- Pulsed electrodeposition
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering