Annealed FINEMET ribbons: Structure and magnetic anisotropy as revealed by the high velocity resolution Mossbauer spectroscopy / Oshtrakh M. I.,Klencsar Z.,Semionkin V. A.,Kuzmann E.,Homonnay Z.,Varga L. K. // MATERIALS CHEMISTRY AND PHYSICS. - 2016. - V. 180, l. . - P. 66-74.

ISSN/EISSN:

0254-0584 / 1879-3312

Type:

Article

Abstract:

The high velocity resolution Fe-57 Mossbauer spectroscopy was used in order to elucidate structural and compositional details of FINEMET (Fe73.5Si15.5Nb3B7Cu1) alloys obtained via the annealing (with and without external magnetic field) of rapidly quenched ribbons. The analysis of the measured Mossbauer spectra was carried out, on one hand, by considering the possibility of a random distribution of iron atoms substituting Si at the D sites in the well crystallized DO3 Fe-Si phase, on the other hand, by allowing for an arbitrary-shape hyperfine magnetic field distribution for the case of the amorphous matrix. The results refer to the influence of the next-nearest-neighbor configurations on the magnitude of iron magnetic moments at the D sites in the precipitated nanocrystalline Fe-Si phase. The applied analysis method enables us to draw conclusions regarding the relative occurrence of the various iron microenvironments in the nanocrystalline phase and amorphous matrix, and the associated Si concentration of the precipitated nanocrystalline DO3 Fe-Si phase. The studied samples provide further evidence concerning the correlation between the induced magnetic anisotropy and the magnetic permeability in annealed FINEMET ribbons. (C) 2016 Elsevier B.V. All rights reserved.

Author keywords:

Nanostructures; Alloys; Annealing; Mossbauer spectroscopy; Magnetic properties ALLOYS; CRYSTALLIZATION; NANOCRYSTALLIZATION; SPECTRA; FIELD

DOI:

10.1016/j.matchemphys.2016.05.

Web of Science ID:

ISI:000380077600009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP 1
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
EISSN	1879-3312
Keywords-Plus	ALLOYS; CRYSTALLIZATION; NANOCRYSTALLIZATION; SPECTRA; FIELD
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	oshtrakh@gmail.com
ResearcherID-Numbers	Oshtrakh, Mikhail/L-8342-2016 Kuzmann, Erno/I-1789-2017
ORCID-Numbers	Oshtrakh, Mikhail/0000-0002-2937-5194 Kuzmann, Erno/0000-0002-0183-6649
Funding-Acknowledgement	Hungarian Science Foundation {[}OTKA K68135, K115784, K115913]; Hungarian Academy of Sciences {[}EAI-2009/003-10030]; Ministry of Education and Science of the Russian Federation {[}2085]; Act 211 Government of the Russian Federation {[}02.A03.21.0006]
Funding-Text	The authors wish to thank Dr. M.S. Karabanalov and Dr. A.V. Chukin (Ural Federal University, Ekaterinburg) for SEM and XRD measurements, respectively. The research was supported by grant of the Hungarian Science Foundation (OTKA K68135, K115784 and K115913), the Hungarian Academy of Sciences under project No EAI-2009/003-10030, the Ministry of Education and Science of the Russian Federation (basic financing for the Project \# 2085) and Act 211 Government of the Russian Federation, contract No 02.A03.21.0006. This work was carried out within the Agreement of Cooperation between Ural Federal University (Ekaterinburg) and Eotvos Lorand University (Budapest).
Number-of-Cited-References	24
Usage-Count-Last-180-days	8
Usage-Count-Since-2013	19
Journal-ISO	Mater. Chem. Phys.
Doc-Delivery-Number	DR7KD