sheldon
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Repah,
There should be no need to set the time step for this simulation. The appropriate way to control the time step is to let the simulator set the time step by setting the accuracy control, error preset. Start with an error preset of moderate. If you need more accuracy try using the Conservative error preset.
The reason you might want to set the time step is to force the simulator to take a time step is to force the time step for the DFT. It should not be required for this simulation.
Sheldon
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