Transport and magnetic properties of ferromagnetic Co-Al-O and Fe-Al-O granular films

S. Nakamura, T. Iwashita, T. Nojima, A. Yoshihara, S. Ohnuma, H. Fujimori

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We investigate the transport and magnetic properties of ferromagnetic Fe-Al-O and Co-Al-O granular films. A negative linear magnetoresistivity is found at least up to 27 T for Co-Al-O films. The temperature dependence of the magnetization of Fe-Al-O films can be explained in terms of the T 1.5-law for three dimensional spin waves theory, but that of Co-Al-O films does not obey the simple power law expected from this theory. The coercive field of a Co-Al-O film is strongly dependent on temperature.

Original languageEnglish
Article number012019
JournalJournal of Physics: Conference Series
Volume266
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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