Controlled growth and magnetic property of fept nanostructure: cuboctahedron, octapod, truncated cube, and cube

Shang Wei Chou, Chun Ling Zhu, Sonnathi Neeleshwar, G. Lung Chen, Yang Yuan Chen, Chia Chun Chen

研究成果: 雜誌貢獻文章同行評審

80 引文 斯高帕斯(Scopus)

摘要

The strategy for shape control of alloy FePt nanocrystal was studied systematically. By the careful adjustments of reaction parameters in a solution reaction, surfactant-facet bindings on the growth seed were controlled delicately. FePt octapod, cuboctahedron, truncated cube, and nanocube were successfully prepared from, cuboctahedral seed and examined by high-resolution transmission electron microscopy. The formations of FePt nanostructures were mainly attributed to the differences in the growth rate between the {111} and {100} planes of cuboctahedral seeds. The magnetic measurements showed, that the order of volume, V(nanocube) > V(octapod) > V (cuboctahedron) obviously reflected the order of saturated magnetization (Ms), Ms (nanocube) > M s (cuboctahedron) > Ms (cuboctahedron). Furthermore, the measurements of octapod exhibited the highest coercivity and blocking temperature because of its higher surface to volume ratio and more structural facets

原文英語
頁(從 - 到)4955-4961
頁數7
期刊Chemistry of Materials
21
發行號20
DOIs
出版狀態已發佈 - 2009 十月 27

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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