<div dir="ltr"><div>Hi users,</div><div> </div><div>In ABO3 structure, I consider an Osomate system.</div><div>I used a PBE-pseudopotential.</div><div>ecut = 40 Ry, ecutrho=400 Ry.</div><div>First I used k-mesh 14*14*14 and q-mesh 2*2*2, then I got the imaginary freq.</div>
<div>So, I used k-mesh 20*20*20 and q-mesh 2*2*2, then I didn't get the freq.</div><div>But, when I used 4*4*4 q-mesh, I got a imaginary freq again.</div><div>How I do to solve this problem?</div><div> </div><div>Sincerely,</div>
<div>Myung-Chul.</div></div>