| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000309117 |
| ISSN: | 0103-9733 |
| Authors: | Pinho, S.T.R1 Haddad, T.A.S Salinas, S.R |
| Institutions: | 1Universidade de Sao Paulo, Instituto de Fisica, Sao Paulo. Brasil |
| Year: | 1997 |
| Season: | Dic |
| Volumen: | 27 |
| Number: | 4 |
| Pages: | 567-573 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | We write exact renormalization-group recursion relations for a ferromagnetic Ising model on the diamond hierarchical lattice with an aperiodic distribution of exchange interactions according to a class of generalized two-letter Fibonacci sequences. For small geometric fluctuations, the critical behavior is unchanged with respect to the uniform case. For large fluctuations, the uniform fixed point in the parameter space becomes fully unstable. We analyze some limiting cases, and propose a heuristic criterion to check the relevance of the fluctuations |
| Disciplines: | Física y astronomía |
| Keyword: | Electromagnetismo, Modelo de Ising, Resonancia, Secuencia de Fibonacci |
| Keyword: | Physics and astronomy, Electromagnetism, Ising model, Resonance, Fibonacci sequence |
| Full text: | Texto completo (Ver HTML) |
