Hyperfine interactions and some thermomagnetic properties of amorphous FeZr(Cr)NbBCu alloys

• Autorzy: Łukiewska A. , Olszewski J.

Identyfikatory

DOI

10.1515/nuka-2017-0019

• Konferencja: All-Polish Seminar on Mössbauer Spectroscopy OSSM 2016 (11th ; 19-22 June 2016 ; Radom-Turno, Poland)
• Języki publikacji: EN

Abstrakty

EN

In this research, we studied the magnetic phase transition by Mössbauer spectroscopy and using vibrating sample magnetometer for amorphous Fe86–xZr7CrxNb2Cu1B4 (x = 0 or 6) alloys in the as-quenched state and after accumulative annealing in the temperature range 600–750 K. The Mössbauer investigations were carried out at room and nitrogen temperatures. The Mössbauer spectra of the investigated alloys at room temperature are characteristic of amorphous paramagnets and have a form of asymmetric doublets. However, at nitrogen temperature, the alloys behave like ferromagnetic amorphous materials. The two components are distinguished in the spectrum recorded at both room and nitrogen temperatures. The low field component in the distribution of hyperfine field induction shifts towards higher field with the annealing temperature. It is assumed that during annealing at higher temperature, due to diffusion processes, the grains of α-Fe are created in the area corresponding to this component. Both investigated alloys show the invar effect and the decrease of hyperfine field induction after annealing at 600 K for 10 min is observed. It is accompanied by the lowering of Curie temperature.

Słowa kluczowe

EN

amorphous Fe-based alloys; invar effect; Mössbauer spectroscopy

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2017
• Tom: Vol. 62, No. 2
• Strony: 135--140
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Łukiewska A.

• Institute of Physics, Czestochowa University of Technology, 19 Armii Krajowej Str., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

autor

Olszewski J.

• Institute of Physics, Czestochowa University of Technology, 19 Armii Krajowej Str., 42-200 Częstochowa, Poland, Tel./Fax: [phone]

Bibliografia

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• 2. Rzącki, J., Świerczek, J., Hasiak, M., Olszewski, J., Zbroszczyk, J., & Ciurzyńska, W. (2015). Hyperfine interaction and some thermomagnetic properties of amorphous and partially crystallized Fe70-xMxMo5Cr4Nb6B15 (M=Co or Ni, x=0 or 10).Nukleonika, 60(1), 121–126. DOI: 10.1515/nuka-2015-0025.
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• 7. Miglierini, M., & Greneche, J. M. (1997). Mössbauer spectrometry of Fe(Cu)MB-type nanocrystalline alloys: I. The fi tting model for the Mössbauer spectra. J. Phys.-Condens. Matter, 9, 2303–2319. DOI:10.1088/0953-8984/9/10/017.
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• 9. Brand, R. A. (1987). Improving the validity of hyperfine field distributions from magnetic alloys. Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms, 28, 398–416.
• 10. Kopcewicz, M., Grabias, A., Nowicki, P., & Williamson, D. L. (1996). Mössbauer and X-ray study of the structure and magnetic properties of amorphous andnanocrystalline Fe81Zr7B12 and Fe79Zr7B12Cu2 alloys. J.Appl. Phys., 79, 993–1003. DOI: 10.1063/1.360885.
• 11. Gondro, J., Świerczek, J., Rzącki, J., Ciurzyńska,W., Olszewski, J., Zbroszczyk, J., Błoch, K., Osyra,M., & Łukiewska, A. (2013) Invar behaviour of NANOPERM-type amorphous Fe-(Pt)-Zr-Nb-Cu-B alloys. J. Magn. Magn. Mater., 341, 100–107. DOI: 10.1016/j.jmmm.2013.04.009.
• 12. Błachowski, A., & Wdowik, U. D. (2012). Transition metal impurity effect on charge and spin density in iron: Ab initio calculations and comparison with Mössbauer data. J. Phys. Chem. Solids, 73, 317–323. DOI: 10.1016/j.jpcs.2011.10.017.10.1016/j.jpcs.2011.10.017.1

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).