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Original Paper

Magnetic properties of ball-milled FeAl nanograins

  1. L. F. Kiss1,*,
  2. D. Kaptás1,
  3. J. Balogh1,
  4. L. Bujdosó1,
  5. J. Gubicza2,
  6. T. Kemény1,
  7. I. Vincze1

Article first published online: 1 DEC 2004

DOI: 10.1002/pssa.200405498

Issue

physica status solidi (a)

physica status solidi (a)

Volume 201, Issue 15, pages 3333–3337, December 2004

Additional Information

How to Cite

Kiss, L. F., Kaptás, D., Balogh, J., Bujdosó, L., Gubicza, J., Kemény, T. and Vincze, I. (2004), Magnetic properties of ball-milled FeAl nanograins. phys. stat. sol. (a), 201: 3333–3337. doi: 10.1002/pssa.200405498

Author Information

  1. 1

    Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, 1525 Budapest, Hungary

  2. 2

    Solid State Physics Department, Eötvös University, P.O. Box 32, 1518 Budapest, Hungary

*Phone: (36-1) 392-2222/1296, Fax: (36-1) 392-22-15

Publication History

  1. Issue published online: 1 DEC 2004
  2. Article first published online: 1 DEC 2004
  3. Manuscript Accepted: 9 NOV 2004
  4. Manuscript Received: 27 JUN 2004

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Keywords:

  • 75.50.Tt;
  • 75.75.+a;
  • 76.80.+y

Abstract

Ball milled alloys were investigated by X-ray diffraction, magnetic measurements and Mössbauer spectroscopy. No magnetic saturation is observed up to 5 T and neither the magnetization nor the Mössbauer measurements show a well-defined phase transition but a gradual disappearance of the magnetism with increasing temperature. The hyperfine field distributions and the X-ray grain size data enable the identification of Fe atoms with magnetic moments as some atomic layers' thick surface of the nonmagnetic nanometric Fe–Al grains. The unusual magnetic behaviour is attributed to the large magnetic anisotropy of the low dimensional magnetic surfaces. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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