Transition to superparamagnetism in a Cr-containing FINEMET-type alloy

V. Franco, C. F. Conde, A. Conde, L. F. Kiss, T. Kemény

Research output: Contribution to journalConference article

9 Citations (Scopus)

Abstract

The transition from a ferromagnetic to a superparamagnetic regime has been studied in a Cr-containing FINEMET-type alloy. Cr enhances the thermal stability of the alloy against nanocrystallization and reduces the Curie temperature of the remaining amorphous phase. Above room temperature, the temperature dependent hysteresis loop of a nanocrystalline sample can be described by a model of interacting superparamagnetic particles. The temperature dependence of the apparent magnetic moment of the particles obtained from the fittings is interpreted in an extended version of the model.

Original languageEnglish
Pages (from-to)3069-3074
Number of pages6
JournalIEEE Transactions on Magnetics
Volume38
Issue number5 I
DOIs
Publication statusPublished - Sep 1 2002
Event2002 International Magnetics Conference (Intermag 2002) - Amsterdam, Netherlands
Duration: Apr 28 2002May 2 2002

Keywords

  • Hysteresis
  • Magnetic materials
  • Magnetization processes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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