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1. Inverted Surface Hysteresis Loops in Heterogeneous (Nanocrystalline/Amorphous) Fe81Nb7B12 Alloys.

Author

Shalyguin, E. E., Škorvánek, I., Švec, P., Molokanov, V. V., and Mel'nkov, V. A.

Subjects
*HYSTERESIS, *AMORPHOUS substances, *ALLOYS, *MAGNETIZATION, *ANISOTROPY, *MAGNETISM
Abstract

Inverted hysteresis loops were observed for the first time in the near-surface layers of heterogeneous (nanocrystalline/amorphous) Fe81Nb7B12 alloys. In particular, a negative residual magnetization is retained when a positive magnetic field applied in the sample plane is decreased to zero. The inverted hysteresis is qualitatively explained within the framework of a two-phase model, according to which the heterogeneous alloys contain two dissimilar phases exhibiting uniaxial magnetic anisotropy and featuring antiferromagnetic exchange interaction. © 2004 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Published
2004
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