Dynamic Critical Exponent
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Softening Mechanisms of the AISI 410 Martensitic Stainless Steel Under Hot Torsion Simulation
This study investigated the softening mechanisms of the AISI 410 martensitic stainless steel during torsion simulation under isothermal continuous in the temperature range of 900 to 1150 °C and strain rates of 0.1 to 5.0s-1. In the first part of the curves, before the peak, the results show that the critical (εc) and peak (εp) strains are elevated for hig
Mat. Res.. Publicado em: 23/01/2017
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2. Multicamadas magnéticas de telureto de európio e semicondutores iv-vi crescidas por epitaxia de feixe molecular / Magnetic multilayers of europium telluride and IV-VI semiconductors grown by molecular beam epitaxy
In this work, thin EuTe films and EuTe/PbTe(SnTe) superlattices were grown, and their structural and magnetic properties were characterized. The molecular beam epitaxial growth parameters of the samples were optimized, particularly those of the EuTe/SnTe SLs. To this goal, the growth modes of EuTe on SnTe and vice versa were investigated, and the influence o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/10/2008
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3. Dinâmica crítica de modelos de spin, autômatos celulares e polipeptídeos. / Critical dynamics of spin models, cellular automata and polypeptides.
In this work we investigated dynamic properties of statistical mechanical models at criticality. At first, using the concepts of global persistence and anomalous dimension of initial magnetization, we showed that the Baxter-Wu model does not belong to the same universality class as 4-state Potts model and Ising with multispin interaction in one direction. In
Publicado em: 2005
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4. Numerical study of resistivity scaling in pi junction granular superconductors
Numerical simulations based on Monte Carlo dynamics are used to investigate the resistivity behavior of granular superconductors containing a random distribution of pi junctions, as in superconducting materials with d-wave symmetry. The presence of pi junctions leads to quenched in circulating currents (chiralities) and to chiral glass behavior at low temper
Brazilian Journal of Physics. Publicado em: 2003-12
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5. Monte Carlo dinâmico aplicado aos modelos de Ising e Baxter-Wu. / Dynamic Monte Carlo method applied to Ising and Baxter-Wu models.
Investigações da dinâmica crítica em modelos de magnetismo, para tempos curtos, têm aparecido com grande freqüência na literatura. Essa técnica foi descoberta por Li, Schülke e Zheng que, inspirados em trabalhos anteriores de Huse e Janssen et al., mostraram que generalizações de grandezas como a magnetização e o cumulante de Binder exibem compo
Publicado em: 2002
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6. Nagel scaling and relaxation in the kinetic Ising model on an n-isotopic chain
The kinetic Ising model on an n-isotopic chain is considered in the framework of Glauber dynamics. The chain is composed of N segments with n sites, each one occupied by a different isotope. Due to the isotopic mass difference, the n spins in each segment have different relaxation times in the absence of interactions, and consequently the dynamics of the sys
Brazilian Journal of Physics. Publicado em: 2000-12
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7. Dynamical Instability Determines the Effect of Ongoing Noise on Neural Firing
At low stimulation rates, electrically stimulated auditory nerve fibers typically fire regularly, in lock-step to the applied stimulus. At high stimulation rates, however, these same fibers fire irregularly. Firing irregularity has been attributed to the random opening and closing of voltage-gated sodium channels at the spike generation site. We demonstrate,
Springer-Verlag.