Made available in DSpace on 2015-03-03T15:15:29Z (GMT). No. of bitstreams: 1 FranciscoBLJ_DISSERT.pdf: 1340368 bytes, checksum: 23cf640d31d17bdd88ad96134433ceb1 (MD5) Previous issue date: 2013-11-29 / We studied the Ising model ferromagnetic as spin-1/2 and the Blume-Capel model as spin-1, > 0 on small world network, using computer simulation through the Metropolis algorithm. We calculated macroscopic quantities of the system, such as internal energy, magnetization, specific heat, magnetic susceptibility and Binder cumulant. We found for the Ising model the same result obtained by Koreans H. Hong, Beom Jun Kim and M. Y. Choi [6] and critical behavior similar Blume-Capel model / ?Neste trabalho estudamos o modelo de Ising ferromagn?tico com spin-1/2 e o modelo Blume-Capel com spin-1, ? > 0 em rede mundo pequeno, usando simula??o computacional atrav?s do algoritmo de Metropolis. Calculamos grandezas macrosc?picas do sistema, tais como a energia interna, a magnetiza??o, o calor espec?fico, a susceptibilidade magn?tica e o cumulante de Binder. Encontramos para o modelo de Ising o mesmo resultado obtido pelos Coreanos H. Hong, Beom Jun Kim e M. Y. Choi [6] e um comportamento cr?tico similar o modelo Blume-Capel.