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Title: Magnetic properties of Fe-Cu-Nb-Si-B nanocrystaliine magnetic alloys
Author: García del Muro y Solans, Montserrat
Batlle Gelabert, Xavier
Zquiak, R.
Tejada Palacios, Javier
Polak, C.
Grössinger, R.
Keywords: Difracció de raigs X
Materials magnètics
Materials nanoestructurats
X-rays diffraction
Magnetic materials
Nanostructured materials
Issue Date: 1994
Publisher: IEEE
Abstract: Several ribbons of composition Fe73.5Cu1Nb 3Si16.5B6 and Fe73.5Cu1 Nb3Si13.5B9 were prepared by annealing the as-quenched samples between 525°C and 700°C; which induced nucleation of nanocrystallites of Fe bcc-type composition. Mean grain sizes were obtained from X-ray diffraction. Static magnetic properties were measured with both a Magnet Physik Hysteresis-Graph (up to 200 Oe) and a SHE SQUID magnetometer (up to 50 kOe). Soft magnetic parameters (coercive field and initial permeability) were very sensitive to grain size. The ZFC magnetization at low field showed a broad peak at a temperature TM, thus signalling a certain distribution of nanocrystalline sizes, and TM strongly decreased when the mean grain size decreased. Isothermal magnetization curves at low temperature showed the expected asymptotic behavior of a random magnet material at low and high fields.
Note: Reproducció del document publicat a
It is part of: IEEE Transactions on Magnetics, 1994, vol. 30, núm. 2 (Part 1-2), p. 502-504.
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ISSN: 0018-9464
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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