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<font style="font-family: tahoma; font-size: 10pt;"><p style="font-family:
tahoma; font-size: 10pt;">Hello </div><div>Thanks because of your
attention.first I have to say, I couldn't understand cell_dofree, I have
celldm(1) & celldm(3) in my input, so how could I insert cell_dofree.
Second problem is when I choose celldm(3)=10 after vc-rx the
calculated stress along z become approximately zero & when I put
celldm(3)=3 it reached stress=-2 (& it means that my cell is large). I
know for introducing one layer to system I have to create vacuum in z so how
could I choose the best value between them?</div><div>Best Regards</div><div>
Mehrnaz Anvari</div><div>Iran University Of Science &
Technology </div></font>
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