<div dir="ltr">Dear experts,<br clear="all"><div><br></div><div>I am trying to do
vc-relax for my 2D systems made of C, B and N. Two different pseudo
potentials gave me totally two different results, NORMCONS LDA gave me
unstable structure but ULTRASOFT LDA gave me otherwise.</div><div>Then I
took the known 2D boron-nitride system to investigate further and again
I got two different outcomes (which I attached below). <br></div><div>Am I doing something wrong? or am I missing something?</div><div>If not then which one I should believe out of the twos.</div><div><br></div><div>Your help will be much appreciated.</div><div>Thanks in advance,</div><div><br></div><div>Regards,<font color="#888888"><font color="#888888"><br></font></font></div><font color="#888888"><br clear="all"></font><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Manoar Hossain<div>Research Scholar</div><div>School of Physical Sciences</div><div>National Institute of Science Education and Research (<span style="font-size:12.8px">NISER)</span></div><div><span style="font-size:12.8px">Bhubaneswar, Jatni, Khurda, Odisha, 752050, INDIA</span></div></div></div></div></div></div>