Splitting of parametric magnons in ferromagnetic crystals
โ Scribed by B. Lemaire; H. Le Gall; J.L. Dormann
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 279 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0038-1098
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๐ SIMILAR VOLUMES
We investigate the entanglement dynamics of magnons in a ferromagnet by using the entanglement criterion proposed by Duan et al. [Phys. Rev. Lett. 84 (2000) 2722]. We show that the entanglement occurs periodically with time, and discuss the effect of the external field on the magnon entangled states
The spectrum of magnetic excitations in amorphous ferromagnets is studied with the Green function method. Dispersion laws of spin waves and the temperature dependence of spin-wave hardness are calculated. It is shown that the dispersion law has a minimum at large wave numbers.
## Abstract The fluctuations in the electron and magnon systems of a ferromagnetic semiconductor in strong electric fields are investigated. The expressions for the correlation functions of the magnon temperature and the longitudinalmagnetic moment fluctuations are derived. The magnon noise tempera