𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Spin wave amplification in ferromagnetic semiconductors

✍ Scribed by M. D. Coutinho Filho; L. C. M. Miranda; S. M. Rezende

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
369 KB
Volume
57
Category
Article
ISSN
0370-1972

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The damping coefficient of magnons interacting ‐with drifting carriers in ferromagnetics semiconductors for both k l > 1 and k l < 1 regimes is calculated. It is shown that for CdCr~2~Se~4~ the amplification factor can be of the order or greater than the losses of spin waves due to other effects.

πŸ“œ SIMILAR VOLUMES

Ferromagnetism and spin waves in diluted
Ferromagnetism and spin waves in diluted magnetic semiconductors
✍ JΓΌrgen KΓΆnig; Hsiu-Hau Lin; Allan H MacDonald πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 103 KB

We present a theory of carrier-induced ferromagnetism in diluted magnetic semiconductors (III,Mn)V which allows for arbitrary itinerant-carrier spin polarization and dynamic correlations. Both ingredients, which are absent in an RKKY description, are essential in identifying the system's elementary