Magnetic softness of permalloy granular films produced by co-evaporation

T. Itoh, Y. Shimada, S. Yoshida, S. Okamoto, O. Kitakami, D. Shindo, Yasukazu Murakami, J. H. Yoo

Research output: Contribution to journalArticle

Abstract

Permalloy granular films were fabricated by co-evaporation. In this paper, MgF2 and CaF2 are used as matrices. The films exhibit good magnetic softness and perpendicular or inplane uniaxial anisotropy that determines high frequency characteristics. The anisotropy is considered to originate from alignment of nanosized granules connected with exchange interaction. Magnetization curves, susceptibility and transmission electron microscopic images support speculation of microscopic granular structure and origin of anisotropy. Very high deposition speed is possible without serious deterioration of magnetic softness. High controllability of anisotropy and high speed deposition are advantageous from the industrial standpoint.

Original languageEnglish
Pages (from-to)3274-3276
Number of pages3
JournalIEEE Transactions on Magnetics
Volume41
Issue number10
DOIs
Publication statusPublished - Oct 1 2005
Externally publishedYes

Fingerprint

softness
Permalloys (trademark)
Evaporation
Anisotropy
evaporation
anisotropy
controllability
Exchange interactions
Controllability
deterioration
Deterioration
Magnetization
alignment
high speed
magnetic permeability
magnetization
Electrons
curves
matrices
electrons

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Itoh, T., Shimada, Y., Yoshida, S., Okamoto, S., Kitakami, O., Shindo, D., ... Yoo, J. H. (2005). Magnetic softness of permalloy granular films produced by co-evaporation. IEEE Transactions on Magnetics, 41(10), 3274-3276. https://doi.org/10.1109/TMAG.2005.854900

Magnetic softness of permalloy granular films produced by co-evaporation. / Itoh, T.; Shimada, Y.; Yoshida, S.; Okamoto, S.; Kitakami, O.; Shindo, D.; Murakami, Yasukazu; Yoo, J. H.

In: IEEE Transactions on Magnetics, Vol. 41, No. 10, 01.10.2005, p. 3274-3276.

Research output: Contribution to journalArticle

Itoh, T, Shimada, Y, Yoshida, S, Okamoto, S, Kitakami, O, Shindo, D, Murakami, Y & Yoo, JH 2005, 'Magnetic softness of permalloy granular films produced by co-evaporation', IEEE Transactions on Magnetics, vol. 41, no. 10, pp. 3274-3276. https://doi.org/10.1109/TMAG.2005.854900
Itoh T, Shimada Y, Yoshida S, Okamoto S, Kitakami O, Shindo D et al. Magnetic softness of permalloy granular films produced by co-evaporation. IEEE Transactions on Magnetics. 2005 Oct 1;41(10):3274-3276. https://doi.org/10.1109/TMAG.2005.854900
Itoh, T. ; Shimada, Y. ; Yoshida, S. ; Okamoto, S. ; Kitakami, O. ; Shindo, D. ; Murakami, Yasukazu ; Yoo, J. H. / Magnetic softness of permalloy granular films produced by co-evaporation. In: IEEE Transactions on Magnetics. 2005 ; Vol. 41, No. 10. pp. 3274-3276.
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