[Wien] kmax for lapw3

2011-11-03 Thread ZhenChen
Dear prof. P. Blaha, Thank you for your quick response. I have also noticed that the form factor is not really the form factor in crystallography. So then, it's unnecessary to increase sin th/l values for me. The ONLY relevant quantity of lapw3 is the total X-ray structure factor. As you

[Wien] kmax for lapw3

2011-11-02 Thread Peter Blaha
The ONLY relevant quantity of lapw3 is the total X-ray structure factor. As you mentioned, it can be calculated for any K smaller than what you specify in the input. What you call X-rax FORM factor, is NOT the X-ray form factor known in usual X-ray crystallography. It is a purely mathematical

[Wien] kmax for lapw3

2011-11-01 Thread ZhenChen
Dear all wien2k users, When I calculated the X-ray form factor of every atom in a crystal using the program lapw3, I found that the maximum sin(theta/lambda) value for X-ray FORM factor of every atom cannot be changed. So I'm eager to know how to get the form factors for larger