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Magnetic Moment and Electronic Structure of Amorphous Alloys of the Type Fe_{80-x}TM_{x}B_{20}

100%
Nowakowska A., Dudek W., Oleniacz J., Zych W.
Acta Physica Polonica A
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1994
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vol. 86
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issue 6
1027-1036
EN
Magnetic properties of amorphous alloys of the type Fe_{80-x}TM_{x}B_{20} (0 ≤ x ≤ 20 at.%, TM = Ni, Co, Mn, Cr, V, Ti) are presented and analyzed. The basis of our research work was the Mössbauer measurements, magnetic saturation measurements, derivative thermo-magnetogravimetry and differential thermal analysis measurements. The magnetic moments are discussed in terms of Friedel's virtual-bound-state model for light TM impurities in strong ferromagnets. Some conclusions about the electronic structure are presented.
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Crystallization of Amorphous Ribbon Observed by Means of Scanning Tunneling Microscope

100%
Witek A., Reich A., Raułuszkiewicz J., Zych W.
Acta Physica Polonica A
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1993
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vol. 83
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issue 4
463-467
EN
Surfaces of amorphous ribbon Fe70V10 B20 were observed by means of the scanning tunneling microscope before and after the annealing in vacuum. The topographic images of the air-side surfaces after annealing are similar in the x-y plane and different in the z-direction. From the scanning tunnelling microscope images some information on the crystallization of amorphous ribbons can be deduced.
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Curie Temperature of Amorphous Ferromagnets of Type Fe-TM-M

100%
Nowakowska E., Oleniacz J., Zych W., Dudek W.
Acta Physica Polonica A
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1997
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vol. 92
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issue 3
569-576
EN
The theoretical Heisenberg model of an amorphous ferromagnet having two magnetic components in the Bethe-Peierls-Weiss approximation was applied to study the concentration dependence of the Curie temperature of the Fe-TM-M alloys (TM - transition metal, M - metalloid). The analysis of the experimental data in comparison with the model calculations was performed.
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