Title :
Hyperfine magnetic fields of disordered systems by 57Fe Mossbauer spectroscopy
Author :
Miglierini, Marcel ; Sitek, Jozef ; Lipka, Jozef
Author_Institution :
Dept. of Nucl. Phys. & Technol., Slovak Tech. Univ., Bratislava, Slovakia
fDate :
3/1/1994 12:00:00 AM
Abstract :
The feasibility of 57Fe transmission Mossbauer spectroscopy in the study of hyperfine magnetic fields is described with emphasis on amorphous, nanocrystalline and quasicrystalline alloys. Distributions of hyperfine magnetic fields obtained are presented via three-dimensional projections where effects of sample composition, temperature and annealing time on magnetic structure are followed by changes in probability of the field values. This allows magnetic transitions as well as mixed electric-quadrupole and magnetic-dipole interactions to be observed
Keywords :
Mossbauer effect; annealing; crystal hyperfine field interactions; magnetic properties of amorphous substances; magnetic properties of fine particles; magnetic structure; magnetic transitions; metallic glasses; nanostructured materials; quasicrystals; stoichiometry; Mossbauer spectroscopy; amorphous alloy; annealing time; composition effect; hyperfine magnetic fields; magnetic structure; magnetic transitions; magnetic-dipole interactions; mixed electric-quadrupole interactions; nanocrystalline alloy; quasicrystalline alloys; temperature effect; Amorphous magnetic materials; Amorphous materials; Annealing; Chromium; Glass; Iron; Magnetic fields; Soft magnetic materials; Spectroscopy; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
