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Perturbation theory for the spin-phonon model

✍ Scribed by Würger, Alois


Book ID
120940876
Publisher
Institute of Physics
Year
1997
Tongue
English
Weight
217 KB
Volume
9
Category
Article
ISSN
0953-8984

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📜 SIMILAR VOLUMES


Perturbation Theory for a Spin System
✍ S. Trimper 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 343 KB

## Abstract The spin 1/2 Heisenberg ferromagnet is treated by perturbation theory. To avoid the difficulties connected with the unusual commutation relations of spin operators the Dyson‐Maleev transformation is applied. The corresponding Bose system is described by the Bose‐Green function. To calcu