<div dir="ltr"><div><div><div>Dear Sir,<br></div>To simulate a isolated Monolayer WSe2
structure(nat=3,ntyp=2) , should I choose the value of ecutwfc very
high(=70, ecutrho=4*ecutwfc) and should I use esm_bc to add vacuum or
should I increase this using stretch cell method.Actually I am getting
convergence problems.Please tell me how to sort this out.<br><br></div>Thanks and regards,<br></div>Anindya Bose</div>