Definition of Amorphous Tapes Magnetic Condition Using Temperature Dependence of the Saturation Magnetic Moment

Abstract:

In article results of research of the saturation magnetic moment temperature dependence of ferromagnetic amorphous tapes on an iron and cobalt basis, and also one not ferromagnetic amorphous tape are described. It is shown that in an initial condition not all atoms of magnetic elements are in a ferromagnetic phase. Temperature dependence of the saturation moment of a ferromagnetic phase of amorphous tapes is well described by Brillouin's function. Possibility of quantitative definition of part of the magnetic atoms forming not ferromagnetic phase of a tape is proved. It is shown that the tape on the iron basis, containing about 20% of chrome, not ferromagnetic in an initial condition, consists of the superparamagnetic nanoparticles including about 10 atoms of iron.

• Periodical: Solid State Phenomena (Volume 215)
• Pages: 268-271
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.215.268
• Online since: April 2014
• Authors: Vladimir Pechnikov
• Keywords: Amorphous Alloy, Brillouin Function, Ferromagnetism, Saturation Magnetization, Superparamagnetism

References

[1] J. Samuel Smart. Effective Field Theories of Magnetism. IBM Watson Research Center Yorktown Heights, New York. 1966. W.B. Saunders Company, Philadelphia-London.