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Control of Cobalt Nanoparticle Size by the Germ-growth Method in Inverse Micelle System: Size-dependent Magnetic Properties

Published online by Cambridge University Press:  31 January 2011

X. M. Lin ,
C. M. Sorensen ,
K. J. Klabunde  and
G. C. Hajipanayis
X. M. Lin
Affiliation:
Condensed Matter Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506
C. M. Sorensen
Affiliation:
Condensed Matter Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506
K. J. Klabunde
Affiliation:
Department of Chemistry, Kansas State University, Manhattan, Kansas 66506
G. C. Hajipanayis
Affiliation:
Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716
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Abstract

Control of Co particle size was archived by a germ-growth method during inverse micelle synthesis. Magnetic coercivity and blocking were both a function of the particle size, which ranged from 38 to 88 Å. Interparticle dipolar interaction was proven to be important in order to interpret the magnetic properties for large-size particles.

Type
Articles
Information
Journal of Materials Research , Volume 14 , Issue 4 , April 1999 , pp. 1542 - 1547
Copyright
Copyright © Materials Research Society 1999

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