<div dir="ltr"><div>In the QHA package in the QE 5.0.3 there is a bug in calculating the q-points grid to the matdyn.x in the DOS calculation using tetra.x . The ratio c/a reading from the .fc file suppose to be 1/(c/a).<br>
</div><div>To correct this bug you should change the line </div><div> c2a=`echo "scale=8;$c2a1/2" | bc -l` <br></div><div>in the [espresso directory]/QHA/Include/Tetrahedra</div><div>To </div><div>c2a=`echo "scale=8;1/$c2a1/2" | bc -l` <br>
</div><div><br></div><div>Uri Argaman</div><div>Ben-Gurion University</div><div>Israel</div></div>