Braz. J. Phys. vol.34 número2A

Standard integration algorithms in applied mathematics are, in general, neither time reversible nor symplectic, and they yield large long-term energy drift, unless very small time

For each value of D , we determined the range of values of J 2 and J 3 where the presence of a compensation point is

The other has small-world bonds built from atoms, and although there is no finite-temperature phase transition the system shows a slow power- law change of the effective

In this work we use molecular dynamics simulation to study the clustering of dust particles deposited on a liquid surface.. Our results are compatible with the picture that one

We have shown that the Ising transition can be obtained from the percolation probability which coincides with the inflection point of the vortex anti-vortex density as a function

As for pattern formation, we can summarize all the above sit- uations: when the walls are neutral, in the absence of mis- match, lamellae will form in the direction normal to the

Ringlike configurations in two-dimensional clusters were systematically investigated by Bedanov and Peeters [11] using Monte Carlo method and a Mendeleev-type of ta- ble for

In the case of the (111) face, experimental studies by MEIS show an anoma- lous behaviour of the thermal expansion coefficient for tem- peratures above 1000 K and an anisotropy of