Perminvar Effect in Amorphous Hitperm Alloy

• Authors: M. Varga , R. Varga , P. Vojtanik , E. Komova
• Languages of publication: EN

Abstracts

EN

Influence of the directional ordering on magnetization processes in the amorphous Fe_{44.5}Co_{44.5}Zr_7B_4 alloy was investigated in the temperature region of 27 to 300°C for stabilization times of up to 1000 min by means of the Perminvar effect. The time-temperature dependent Perminvar effect was found to be very sensitive on the stage of the domain structure stabilization. The Perminvar critical fields H_{CR} were shifted to higher values with increasing stabilization temperatures and times. At lower temperatures, the susceptibility increases over wide range of the measuring fields. Stabilization at higher temperatures causes that the susceptibility abruptly increases in the narrow field range. The record critical field H_{CR} =246 Am^{-1} was obtained.

Keywords

EN

75.50.Kj; 75.60.Lr

Discipline

• 75.60.Lr: Magnetic aftereffects
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 119-122

Dates

published

2008-01

received

2007-07-09

Contributors

author

M. Varga

• Institute of Physics, Fac. Sci., P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

R. Varga

• Institute of Physics, Fac. Sci., P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

P. Vojtanik

• Institute of Physics, Fac. Sci., P.J. Šafárik University, Park Angelinum 9, 041 54 Košice, Slovakia

author

E. Komova

• Faculty of Aeronautics, Technical University, Rampová7, 041 21 Košice, Slovakia

References

• 1. M.E. McHenry, M.A. Willard, D.E. Laughlin, Prog. Mater. Sci. 44, 291 (1999)
• 2. R. Andrejco, P. Vojtanik, J. Phys., Condens. Matter 16, 3745 (2004)
• 3. P. Vojtanik, J. Magn. Magn. Mater. 304, 159 (2006)
• 4. G.W. Elmen, J. Franklin Inst. 207, 583 (1929)
• 5. L. Néel, J. Phys. Radium 13, 249 (1952)

Identifiers

DOI

10.12693/APhysPolA.113.119