Spin-wave spectrum of an amorphous ferromagnet
- 1 May 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 9 (9) , 3828-3834
- https://doi.org/10.1103/physrevb.9.3828
Abstract
The spin-wave spectrum of an amorphous Heisenberg ferromagnet is calculated by a diagrammatic expansion making use of a transformation suggested by Taylor and Wu. The upper limit of the spectrum is found to occur at frequencies below those of the corresponding crystalline system, while the low-frequency part of the spectrum is enhanced. Internal van Hove singularities are absent in the spin-wave spectrum of the amorphous ferromagnet.Keywords
This publication has 17 references indexed in Scilit:
- Some details of the density of states of a disordered alloyJournal of Physics C: Solid State Physics, 1973
- Effect of short-range order on the band-edge behavior of the electronic spectrum of disordered alloysSolid State Communications, 1973
- Exact Coherent Potential for Electrons in Liquid MetalsPhysical Review B, 1971
- Special aspects of the electronic structure of a onedimensional random alloyJournal of Physics C: Solid State Physics, 1971
- Structure of Amorphous Ni–Pd–P and Fe–Pd–P AlloysJournal of Applied Physics, 1969
- Ferromagnetic properties of amorphous nickelPhysics Letters A, 1969
- Coherent-Potential Model of Substitutional Disordered AlloysPhysical Review B, 1967
- Electrons in disordered structuresAdvances in Physics, 1967
- Energy gaps in disordered systems: II. AlloysProceedings of the Physical Society, 1967
- Energy gaps in disordered systemsProceedings of the Physical Society, 1966