Investigation of the Magnetization Reversal Process of High-Remanent Nd_{10}Fe_{83}Zr_1B_6 Alloy in the As-Cast State

• Authors: A. Ceglarek , D. Płusa , M. Dośpiał , M. Nabiałek , P. Pietrusiewicz
• Languages of publication: EN

Abstracts

EN

In this work the magnetic properties of ribbons with composition of Nd_{10}Fe_{83}Zr_1B_6 obtained by using the melt-spinning method were studied. From the X-ray diffraction patterns the phase composition was determined. It was found that investigated alloy was composed of α-Fe and Nd_2Fe_{14}B phases. From the peaks broadening the grain sizes of α-Fe and Nd_2Fe_{14}B phases were estimated as equal to 20 nm and 40 nm, respectively. From the recoil curves the reversible μ_0 M_{rev} and irreversible μ_0 M_{irr} parts of magnetization and differential susceptibility χ_{rev} and χ_{irr} were determined as a function of an applied field. From these dependences it was found that the pinning of domain walls at the grain boundaries is the main magnetization reversal process. The interactions between grains were investigated by means of the δ M plot. It was stated that short range exchange interaction between grains of hard and soft phases are dominant and causes the remanence enhancement.

Keywords

EN

75.30.Et; 75.50.Vv; 75.50.Ww; 75.60.Ej; 75.60.Jk

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 75.60.Jk: Magnetization reversal mechanisms
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 75.50.Vv: High coercivity materials
• 75.50.Ww: Permanent magnets(for magnets, see 07.55.Db in instruments)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1279-1281

Dates

published

2012-05

Contributors

author

A. Ceglarek

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

D. Płusa

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

M. Dośpiał

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

M. Nabiałek

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

author

P. Pietrusiewicz

• Institute of Physics, Częstochowa University of Technology, al. Armii Krajowej 19, 42-200 Częstochowa, Poland

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Identifiers

DOI

10.12693/APhysPolA.121.1279