Dear PWSCF users,<br>I want to do structural relaxation calculation on LaMnO3 (insulating antiferromagnet). And I am having few question for doing relaxation of a=b#c type of compounds.<br><br>1. Do I have to simply run the vc-relax calculation and the results at the end gives relaxed structure?<br>
2. Do after relaxation the final Pressure P= , I got very low? <br>3. I have run the vc-relax calculation (still running). During calculation I find that although pressure reaches comparitively lower value ~ -2.01 kbar, but the (3x3) stress tensor matrix, the off diagonal although zero, but the on-diagonal elements do show 11.52 Kbar pressure also............<br>
So my question is, why I am not getting total pressure P and all the on-diagonal element appreciable of some very low value? <br>What more option I have to use in input file for my point 3?<br><br>Kindly guide me for the same.<br>
regards<br clear="all"><br>-- <br>Dr. Bipul Rakshit<br>Research Associate,<br>S N Bose Centre for Basic Sciences,<br>Salt Lake,<br>Kolkata 700 098<br>India<br>