Dear all QE users and developers..<br><br>I want to calculate the property of system at T=0 K and at P=0 kbar at starting of my pw.x run.<br>But at the end of run, i obtained force=0 but stress p =-832.77 kbar.<br>I am afraid of this stress value. my input file is given below.<br clear="all">
<br>&CONTROL<br> calculation = 'scf' ,<br> restart_mode = 'from_scratch' ,<br> outdir = '.' ,<br> pseudo_dir = './' ,<br>
prefix = 'aln' ,<br> tstress = .true. ,<br> tprnfor = .true. ,<br> /<br> &SYSTEM<br> ibrav = 2,<br> celldm(1) = 8.285,<br>
nat = 2,<br> ntyp = 2,<br> ecutwfc = 28 ,<br> /<br> &ELECTRONS<br> conv_thr = 1.0d-8 ,<br> mixing_beta = 0.7 ,<br>
/<br>ATOMIC_SPECIES<br> Al 26.98000 Al.pz-vbc.UPF <br> N 14.01000 N.pz-vbc.UPF <br>ATOMIC_POSITIONS alat <br> Al 0.000000000 0.000000000 0.000000000 <br> N 0.250000000 0.250000000 0.250000000 <br>
K_POINTS automatic <br> 4 4 4 0 0 0 <br><br>Any type of help is highly appreciated.<br><br><br><br>-- <br>Thanks and Regards<br>Bramha Prasad Pandey<br>GLA University, Mathura.<br>INDIA.<br><br>