Phase dependent magnetic properties of Ni-Au alloy nanowires

Title
Phase dependent magnetic properties of Ni-Au alloy nanowires
Authors
Raghupatruni PrasadBoo Hyun An신영민In Tak Jeon서진유Young Keun Kim최인석
Keywords
nanowires; phase transformation; magnetic properties
Issue Date
2014-02
Publisher
Materials letters
Citation
VOL 116, 86-90
Abstract
Binary alloy nanowires of mutually immiscible Ni–Au system are synthesized by electrodeposition method. Here, we incorporate the concept of alloy design into nanowires to effectively engineer and control the magnetic properties of nanowires. Saturation magnetization and coercivity values of as-deposited Ni–Au alloy nanowires strongly correlate with either the phases present or to the dissolution of gold to nickel. The magnetic properties, however, were significantly affected upon annealing, which is correlated with the structural evolution of a weakly magnetic metastable hcp-Ni phase. We report here the detailed investigation on phase transformations in Ni–Au alloy nanowires and their effect on magnetic properties.
URI
http://pubs.kist.re.kr/handle/201004/48322
ISSN
0167577X
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KIST Publication > Article
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