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24 April 2024 |
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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
; | | Date: |
11 Dec 2008 | | 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. | | Source: | arXiv, 0812.2162 | | Services: | Forum | Review | PDF | Favorites | |
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