Physics NotePublished
Surface Ferro (or Antiferro) Magnetism in Bulk Antiferro (or Ferro) Magnets: Renormalization Group Analysis
E. F. Sarmento; C. Tsallis
1985
Publication details
- Authors
- E. F. Sarmento; C. Tsallis
- Type
- Physics Note
- Status
- Published
- Publication date
- 1985
- Description
- The renomarlization group techniques are applied, for the first time, to surface magnetism in bulk magnets, ''for all signs'' of surface and bulk coupling constants. The q-state Potts model is specifically focused, and a interesting q-evolution of the phase diagram is exhibited. In particular the Ising model (q=2) presents a remarkable feature: surface ferro (or antiferro) magnetism can disappear while heating an antiferro (or ferro) magnet, and ''reappear again'' for higher temperatures, before entering in the paramagnetic phases.
- Year
- 1985
- Number
- CBPF-NF-005/85
- Linked to a thesis
- No
- Linked to a grant
- No