about silicene

[arpit]

Dear sir,
I want to know that for silicene ,what values of k-point are suitable.

[zh]

Usually, one had better do a convergence test calculation for the setup of k-mesh and mesh cut-off. 

You may refer to the setup of silicene in the following paper:
Journal of The Electrochemical Society, 158 (2) H107-H110 (2011)
In this paper, the authors used a 40x40x1 k-mesh for the calculation of bulk silicene.

[arpit]

Thank you for your response sir...
 but sir can you plz tell me how can we perform convergence test calculation for the setup of k-mesh and mesh cut-off..............

[zh]

Carry out the total energy calculation of a system with different k-mesh to see the change of total energy as function of a k-mesh.
The similar way is applied on the mesh cut-off.