Magnetic Properties and Structure of Amorphous Fe_{74}Hf_{4}Ta_{1}Cu_{1}Gd_{1}La_{x}Si_{15-x}B_{4} (x = 0, 7) Ribbons

• Authors: P. Bardziński , M. Kopcewicz , M. Rybaczuk , M. Hasiak , A. Musiał , V. Kinzhybalo , B. Idzikowski
• Languages of publication: EN

Abstracts

EN

The multi component Fe_{74}Hf_{4}Ta_{1}Cu_{1}Gd_{1}La_{x}Si_{15-x}B_{4} (x = 0, 7) alloys are promising candidates in the search for materials with unusual mechanical and magnetic properties. Amorphous nature of melt-spun samples was confirmed by X-ray diffractometry and Mössbauer spectroscopy. The X-ray diffraction patterns revealed a distinct amorphous halo. The low-field components of magnetic hyperfine field distributions on iron nuclei are observed in the Mössbauer spectra, with average hyperfine field values of 19.9 and 15.7 T for x = 0 and x = 7, respectively. Coercivity studied by vibrating sample magnetometer was about 12 A/m for x = 0 and 82 A/m for x = 7 at 300 K and about 600 A/m for x = 0 and 1200 A/m for x = 7 at 400 K. Remanence also changed with temperature, amounting to 0.64 T for x = 0 and 0.36 T for x = 7 at 300 K, while at 400 K it was 0.43 and 0.11 T for x = 0 and x = 7, respectively. It is shown that La addition has beneficial effect of shifting the Curie point towards lower temperatures together with the increase of magnitude of magnetization.

Keywords

EN

75.50.-y; 75.50.Bb; 75.50.Kj; 75.60.Ej; 81.05.Kf; 82.80.Ej; 61.05.Qr

Discipline

• 82.80.Ej: X-ray, Mössbauer, and other γ-ray spectroscopic analysis methods
• 75.50.-y: Studies of specific magnetic materials
• 61.05.Qr: Magnetic resonance techniques; Mössbauer spectroscopy (for structure determination only)
• 81.05.Kf: Glasses (including metallic glasses)
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 75.50.Bb: Fe and its alloys

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 3
• Pages: 827-830

Dates

published

2015-03

received

2014-11-16

(unknown)

2014-12-26

Contributors

author

P. Bardziński

• Wrocław University of Technology, Wrocław, Poland

author

M. Kopcewicz

• Institute of Electronic Materials Technology, Warsaw, Poland

author

M. Rybaczuk

• Wrocław University of Technology, Wrocław, Poland

author

M. Hasiak

• Wrocław University of Technology, Wrocław, Poland

author

A. Musiał

• Institute of Molecular Physics, PAS, Poznań, Poland

author

V. Kinzhybalo

• Institute of Low Temperature and Structure Research, PAS, Wrocław, Poland

author

B. Idzikowski

• Institute of Molecular Physics, PAS, Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.827