Title: Determination of the size of Fe grains in Ag by Mossbauer spectroscopy
Authors: Balogh, J ×
Kaptas, D
Vincze, I
Temst, Kristiaan
Van Haesendonck, Christian #
Issue Date: Aug-2007
Publisher: Published by the American Physical Society through the American Institute of Physics
Series Title: Physical Review B, Condensed Matter and Materials Physics vol:76 issue:5
Article number: 052408
Abstract: The decrease of the average magnetic grain size with increasing Ag spacer thickness was deduced recently [J. Balogh, D. Kaptas, L. F. Kiss, T. Pusztai, E. Szilagyi, A. Tunyogi, J. Swerts, S. Vandezande, K. Tenst, and C. Van Haesendanck, Appl. Phys. Lett. 87, 102501 (2005)] from bulk magnetic properties of Fe/Ag granular multilayers. Now we show detailed Mossbauer spectroscopy measurements that support this finding and determine the hyperfine fields of Fe atoms in the grain boundaries. The grain size estimated by a simple model from the grain boundary fraction agrees well with that obtained from the external field dependence of the hyperfine field in the superparamagnetic state.
ISSN: 1098-0121
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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