Ni/Ni3C Core-Shell Nanochains and Its Magnetic Properties: One-Step Synthesis at low temperature

Wei Zhou; Lin He; Rongming Wang; Kun Zheng; Lin Guo; Chinping Chen; Xiaodong Han; Ze Zhang

doi:10.1021/nl073291j

Ni/Ni3C Core-Shell Nanochains and Its Magnetic Properties: One-Step Synthesis at low temperature

Materials Science 2015-05-13 v1

Authors: Wei Zhou , Lin He , Rongming Wang , Kun Zheng , Lin Guo , Chinping Chen , Xiaodong Han , Ze Zhang

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Abstract

One-dimensional Ni/Ni3C core-shell nanoball chains with an average diameter by around 30 nm were synthesized by means of a mild chemical solution method using a soft template of trioctylphosphineoxide (TOPO). It was revealed that the uniform Ni nanochains were capped with Ni3C thin shells by about 1 to 4 nm in thickness and each Ni core consists of polygrains. The coercivity of the core-shell nanochains is much enhanced (600 Oe at 5 K) and comparable with single Ni nanowires due to the one-dimensional shape anisotropy. Deriving from the distinctive structure of Ni core and Ni3C shell, this architecture may possess a possible bi-functionality. This unique architecture is also useful for the study on the magnetization reversal mechanism of one-dimensional magnetic nanostructure.

Keywords

Ni/Ni3C core-shell nanochains magnetic properties shape anisotropy magnetization reversal

Cite

@article{arxiv.0812.2162,
  title  = {Ni/Ni3C Core-Shell Nanochains and Its Magnetic Properties: One-Step Synthesis at low temperature},
  author = {Wei Zhou and Lin He and Rongming Wang and Kun Zheng and Lin Guo and Chinping Chen and Xiaodong Han and Ze Zhang},
  journal= {arXiv preprint arXiv:0812.2162},
  year   = {2015}
}

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17 pages, 6 figure

Ni/Ni3C Core-Shell Nanochains and Its Magnetic Properties: One-Step Synthesis at low temperature

Abstract

Keywords

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