<div dir="ltr"><div>Dear Sir,</div><div><br></div><div>I am trying to find elastic
coefficients for an orthorohmbic system using IRelast package. I have
set the command run option via calling "O_set_elast_lapw" <br></div><div>runcommand1: run_lapw -ec 0.0001 -in1new 2</div><div>runcommand2:run_lapw -ec 0.0001 -in1new 2</div><div> :min_lapw -j "run_lapw -I -fc 1.0 -i 60 -p" . <br></div><div>Hopefully,
it syas that I have done the geometrical optimization for the strained
configuration. If so then why did I find the warning for c44 as "please
restart anew from the final position" (after executing ORTHO.job). If I
apply the strain as -2, -1, 1, 2, 3 (%) without the unstarined one (i.e.
0%), then is there any change in the values of final elastic coefficients after analysis?</div><div><br></div><div>Thank you in advance.<br></div><br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div>With regards</div><div>Anupriya Nyayban</div><div>Ph.D. Scholar</div><div>Department of Physics</div><div>NIT Silchar<br></div></div></div></div>