𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Thermal boson expansion for the Heisenberg ferromagnet

✍ Scribed by M. Brajczewska; C. Fiolhais; J. Da Providência

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
492 KB
Volume
137
Category
Article
ISSN
0378-4371

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Application of the thermal boson expansi
Application of the thermal boson expansion to the Heisenberg ferromagnets EuO and EuS
✍ C. Fiolhais; M. Brajczewska; J. da Providência 📂 Article 📅 1988 🏛 Elsevier Science ⚖ 745 KB

The method of thermal boson expansion [1] is extended to the Heisenberg model with spins S/> 1 and applied to the ferromagnetic insulators EuO and EuS. Taking in the momentum space an adequate cut-off, which is almost independent of the spin, a good guess of the critical temperature is made. The te

Application of the thermal boson expansi
Application of the thermal boson expansion to the Heisenberg antiferromagnet MnF2
✍ M. Brajczewska; C. Fiolhais; J. Da Providência 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 369 KB

We apply the thermal boson expansion which has been presented in refs. [1][2][3] to the Heisenberg isotropic antiferromagnet, submitted to an external field. Considering only spin waves with wave vectors up to a certain cut-off, the magnetization and the principal susceptibilities are calculated. Th

Monte-Carlo calculation for the classica
Monte-Carlo calculation for the classical F.C.C. Heisenberg ferromagnet
✍ Th.T.A. Paauw; A. Compagner; D. Bedeaux 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 561 KB

The equilibrium properties of the classical f.c.c. Heisenberg ferromagnet are studied by Monte-Carlo techniques for small finite systems. Using the asymptotic dependence on the system size the re:suits are extrapolated to the infinite system. The critical temperature is found to be T¢ = 3.18 + 0.02