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<style style="" class="" type="text/css">P { margin-bottom: 0.08in; }</style>
</div><div class="" style="margin-bottom: 0in">Dear All</div>
<div class="" style="margin-bottom: 0in">I calculate the lattice constant of
ZnO. The total energy is minimum at this lattice constant but force
is not zero (P=-20 Kbar) at this lattice consatnt... My question is
that How I can get minimum total energy and zero forces (P=0) at same
lattice constanant....</div>
<div style="" class=""><span style="" class=""></span></div><div style="" class=""> </div><div style="" class="">Muhammad Zafar<br style="" class="">PhD Scholar<br style="" class="">Department of Physics<br style="" class="">The Islamia University of Bahawalpur,Pakistan</div></div></body></html>