<div dir="ltr">Dear Wien2k Users and experts,<br><br><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">I
am runnning wien2k version 16.0 on my Linux PC with operating system
ubuntu 16.04LTS, Intel fortran compiler and Intel MKL library. The
purpose of my calculations is to extract the complete form of X-ray structure factors from
case.clmsum by lapw3.</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">The case I use in DFT calculation is GaN, theĀ </span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"> atomic structure of </span>which is not centro-symmetric, leading the values of structure factors to be complex numbers. However the X-ray factors calculated from lapw3 are real numbers, which are the amplitude of the structure factors. Therefore the phase information of the structure factors get lost. Given the </span><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">DFT-calculated atomic and electronic structure,</span> the phase of the structure factors can be revealed by Fourier transforms. But the command 'x lapw3' seems not to output these phase informations.<br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">My question is:</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">Is there any way to calculate the phase of structure factors by lapw3 or other component subprograms of Wien2k?</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">Many thanks in advance,</span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)">Ding <br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;background-color:rgb(255,255,255)"><br></span></div><div><font face="arial, sans-serif" color="#222222"><span style="font-size:12.8px;background-color:rgb(255,255,255)"><br></span></font></div></div>