<div dir="ltr">Hi,<br><br>Firstly, sorry for the confusion. <br>My system is MgSiO3
which is not metallic system, and in the coordination part in the input
file I just deleted most atoms to keep it shorter, actually there are 250
atoms (although it is a test run), I will increase the atom number to
1000 for production calculation. <br><br>I will try smaller mixing_fraction as you suggested. Thanks.<br><br>Tao<br><br></div>