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EASY AXIS DISTRIBUTION IN MODERN NANOPARTICLE STORAGE MEDIA: A NEW METHODOLOGICAL APPROACH

V. Kuncser1,* , W. Keune2, M. Vopsaroiu3, P. R. Bissell3, B. Sahoo2, G. Filoti1

Affiliation

  1. National Institute for Materials Physics, PO Box MG 7, 76900 - Bucharest-Magurele, Romania
  2. Laboratorium für Angewandte Physik, Gerhard-Mercator-Universität, 47048, Duisburg, Germany
  3. University of Central Lancashire, Magnetic Materials Research, Preston, PR1 2HE, UK

Abstract

Easy axis distribution in metal particle magnetic tapes for linear digital data storage were studied by Mössbauer spectroscopy and magnetometry, for comparison. Qualitative and quantitative agreement between the distribution parameters deduced at room temperature via the two different techniques was found. The proposed methodology based on the interpretation of the Mössbauer data has the advantage that it can be applied at different temperatures and for very thin films. Moreover, angular spin distribution at low temperatures were obtained by Mössbauer spectroscopy and discussed with respect to the room temperature results. There was evidenced that the room temperature easy axis angular distribution contains both static orientation and dynamical components..

Keywords

Metal particle magnetic tapes, Easy axis distribution, Mössbauer spectroscopy, Magnetometry.

Submitted at: July 20, 2002
Accepted at: March 12, 2003

Citation

V. Kuncser, W. Keune, M. Vopsaroiu, P. R. Bissell, B. Sahoo, G. Filoti, EASY AXIS DISTRIBUTION IN MODERN NANOPARTICLE STORAGE MEDIA: A NEW METHODOLOGICAL APPROACH, Journal of Optoelectronics and Advanced Materials Vol. 5, Iss. 1, pp. 217-226 (2003)