Magnetism of nanophase composites

D. J. Sellmyer, R. Skomski

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The magnetic behavior of hard-magnetic nanocomposites such as Pt-Fe thin films and Sm-Co-Cu-Ti cellular magnets is investigated. A quite general free-energy series expansion shows that the temperature dependence of the coercivity of hard-magnetic nanostructures is largely determined by the intrinsic temperature dependence of the micromagnetic parameters. By contrast, thermally activated jumps over micromagnetic energy barriers are small perturbations observed as sweep-rate dependence.

Original languageEnglish (US)
Pages (from-to)531-535
Number of pages5
JournalScripta Materialia
Volume47
Issue number8
DOIs
StatePublished - Oct 1 2002

Fingerprint

Magnetism
temperature dependence
composite materials
Energy barriers
Composite materials
Coercive force
series expansion
Free energy
coercivity
Magnets
Nanostructures
Nanocomposites
nanocomposites
magnets
free energy
Thin films
perturbation
Temperature
thin films
energy

Keywords

  • Coercivity
  • Hard magnets
  • Magnetic properties
  • Nanocomposite
  • Nanocrystalline materials

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Cite this

Magnetism of nanophase composites. / Sellmyer, D. J.; Skomski, R.

In: Scripta Materialia, Vol. 47, No. 8, 01.10.2002, p. 531-535.

Research output: Contribution to journalArticle

Sellmyer, D. J. ; Skomski, R. / Magnetism of nanophase composites. In: Scripta Materialia. 2002 ; Vol. 47, No. 8. pp. 531-535.
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