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

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

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

Original languageEnglish
Pages (from-to)4955-4961
Number of pages7
JournalChemistry of Materials
Volume21
Issue number20
DOIs
Publication statusPublished - 2009 Oct 27

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Seed
Nanostructures
Magnetic properties
Magnetic variables measurement
High resolution transmission electron microscopy
Coercive force
Surface-Active Agents
Nanocrystals
Magnetization
Surface active agents
Temperature

ASJC Scopus subject areas

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

Cite this

Controlled growth and magnetic property of fept nanostructure : cuboctahedron, octapod, truncated cube, and cube. / Chou, Shang Wei; Zhu, Chun Ling; Neeleshwar, Sonnathi; Chen, G. Lung; Chen, Yang Yuan; Chen, Chia Chun.

In: Chemistry of Materials, Vol. 21, No. 20, 27.10.2009, p. 4955-4961.

Research output: Contribution to journalArticle

Chou, Shang Wei ; Zhu, Chun Ling ; Neeleshwar, Sonnathi ; Chen, G. Lung ; Chen, Yang Yuan ; Chen, Chia Chun. / Controlled growth and magnetic property of fept nanostructure : cuboctahedron, octapod, truncated cube, and cube. In: Chemistry of Materials. 2009 ; Vol. 21, No. 20. pp. 4955-4961.
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