Magnetic properties of microwires and filiform nanostructures with elongated magnetic inclusions
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ALEINICOV, Evghenii; IOISHER, Anatol; MAKHNOVSKIY, Dmitriy ; POSTOLACHE, Vitalie; TIGINYANU, Ion; URSAKI, Veacheslav. Magnetic properties of microwires and filiform nanostructures with elongated magnetic inclusions. In: Surface Engineering and Applied Electrochemistry. 2016, nr. 6(52), pp. 499-508. ISSN 1068-3755.
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Surface Engineering and Applied Electrochemistry
Numărul 6(52) / 2016 / ISSN 1068-3755 /ISSNe 1934-8002

Magnetic properties of microwires and filiform nanostructures with elongated magnetic inclusions


DOI: 10.3103/S1068375516060028
Pag. 499-508

Aleinicov Evghenii1, Ioisher Anatol1, Makhnovskiy Dmitriy 2, Postolache Vitalie3, Tiginyanu Ion3, Ursaki Veacheslav4
 
1 Research Institute “ELIRI”,
2 Robat Ltd., Manchester,
3 Technical University of Moldova,
4 Ghitu Institute of Electronic Engineering and Nanotechnology of the Academy of Sciences of Moldova
 
Disponibil în IBN: 8 noiembrie 2017


Rezumat

We developed technological procedures for preparation of filiform nanostructures (FNSs) on the basis of stretching microwires with magnetic material cores. It is shown that disruptions of the microwire core occur for these materials during technological process of stretching due to relatively high melting temperature of magnetic alloys. As a result, FNSs with elongated magnetic inclusions are produced. An installation for the production of FNSs as well as an experimental complex for measuring magnetic properties of the produced magnetic FNSs is described in this paper. The morphology of the produced FNSs from microwires with magnetic bistability is investigated by means of scanning electron microscopy, while magnetic properties, such as magnetic response with remagnetizing pulses, hysteresis loop, and coercive force, are investigated on the developed experimental complex. The magnetic interaction during remagnetizing processes of several microwires with different coercive forces assembled in a bunch, as well as the reaction of a bunch assembled from a big number of bistable mirowires of two types with different coercive forces (soft magnetic and hard magnetic cores) upon increasing external magnetic field are also investigated. Some potential applications of the produced magnetic structures are suggested.

Cuvinte-cheie
coercive force, filiform nanostructures, magnetic alloys, magnetic bistability, magnetic hysteresis, microwires, remagnetization