Document Detail


Synthesis and Magnetic Properties of Maghemite (gamma-Fe(2)O(3)) Short-Nanotubes.
MedLine Citation:
PMID:  20730115     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We report a rational synthesis of maghemite (gamma-Fe(2)O(3)) short-nanotubes (SNTs) by a convenient hydrothermal method and subsequent annealing process. The structure, shape, and magnetic properties of the SNTs were investigated. Room-temperature and low-temperature magnetic measurements show that the as-fabricated gamma-Fe(2)O(3) SNTs are ferromagnetic, and its coercivity is nonzero when the temperature above blocking temperature (T(B)). The hysteresis loop was operated to show that the magnetic properties of gamma-Fe(2)O(3) SNTs are strongly influenced by the morphology of the crystal. The unique magnetic behaviors were interpreted by the competition of the demagnetization energy of quasi-one-dimensional nanostructures and the magnetocrystalline anisotropy energy of particles in SNTs.
Authors:
W Wu; X H Xiao; S F Zhang; T C Peng; J Zhou; F Ren; C Z Jiang
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2010-6-17
Journal Detail:
Title:  Nanoscale research letters     Volume:  5     ISSN:  1556-276X     ISO Abbreviation:  -     Publication Date:  2010  
Date Detail:
Created Date:  2010-8-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101279750     Medline TA:  Nanoscale Res Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1474-1479     Citation Subset:  -    
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