Soft X-ray absorption spectroscopy and magnetic circular dichroism study of electroless-deposited CoNiFe ternary alloy soft magnetic films

Masahito Tanaka, Naomichi Nakamura, Toru Asahi, Toshihiro Tsumori, Akane Agui, Masaichiro Mizumaki, Tetsuya Osaka

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Abstract

We studied microscopic magnetic properties of each consistent atom in boron added CoNiFe electroless-deposited soft magnetic films, which is a promising candidate for the soft magnetic underlayer of the perpendicular magnetic recording medium, by X-ray absorption spectra (XAS) and magnetic circular dichroism (MCD) measurement. It was found that various monoxides and Fe sesquioxide coexisted with the metals at the upper part of the films. The results of MCD sum rule showed the expected values of orbital angular moment 〈Lz〉 for the film with macroscopic magnetic domain boundaries were larger than those of without domains at Co and Ni atoms and smaller at Fe atom. The appearance of macroscopic magnetic domain boundaries probably originated from the increase in 〈LZ〉 of Co and/or Ni atoms.

Original languageEnglish
Pages (from-to)2783-2786
Number of pages4
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Volume3
Issue number8
DOIs
Publication statusPublished - 2006

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magnetic films
ternary alloys
dichroism
absorption spectroscopy
magnetic domains
atoms
x rays
magnetic recording
sum rules
boron
magnetic properties
absorption spectra
moments
orbitals
metals

ASJC Scopus subject areas

  • Condensed Matter Physics

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Soft X-ray absorption spectroscopy and magnetic circular dichroism study of electroless-deposited CoNiFe ternary alloy soft magnetic films. / Tanaka, Masahito; Nakamura, Naomichi; Asahi, Toru; Tsumori, Toshihiro; Agui, Akane; Mizumaki, Masaichiro; Osaka, Tetsuya.

In: Physica Status Solidi (C) Current Topics in Solid State Physics, Vol. 3, No. 8, 2006, p. 2783-2786.

Research output: Contribution to journalArticle

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AU - Agui, Akane

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AU - Osaka, Tetsuya

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