Moessbauer spectra studied of spin-wave excitation for amorphous alloys
Description
The average hyperfine fields of amorphous Fe70Co20Zr10, Fe80Co10Zr10 and Fe86Co4-Zr10 alloys at different temperature were measured by the Moessbauer technique. According to Bloch's T3/2 relation, spin-wave excitations of above amorphous alloys were studied and their B3/2 values were found to be 0.40 +- 0.02, 0.45 +- 0.02 and 0.88 +- 0.04, respectively. Comparing the B3/2 values of crystals, a-Fe-(Co, Ni)-ME, a-Fe-(Cr, Mn, W)-ME and a-Fe-B or TM-Zr invar alloys, the obvious difference among them was observed. Above results can be explained well by the exchange coupling fluctuation and the disorder of spatial arrangement. In this work, the difference between the stiffness coefficients obtained from the inelastic neutron scattering and the magnetization measurements for amorphous Invar alloys was also explained
Additional details
Publishing Information
- Journal Title
- Nuclear Techniques
- Journal Volume
- 15
- Journal Issue
- 4
- Journal Page Range
- p. 193-198.
- ISSN
- 0253-3219
- CODEN
- NUTEDL
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 24040666
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- AMORPHOUS STATE; BLOCH THEORY; COBALT ALLOYS; EXCITATION; FLEXIBILITY; HYPERFINE STRUCTURE; INVAR; IRON BASE ALLOYS; MOESSBAUER EFFECT; SPIN WAVES; TEMPERATURE DEPENDENCE; ZIRCONIUM ALLOYS
- Descriptors DEC
- ALLOYS; ENERGY-LEVEL TRANSITIONS; IRON ALLOYS; MECHANICAL PROPERTIES; NICKEL ALLOYS; TENSILE PROPERTIES