[Pw_forum] About Pseudo-Potential generation

2007-01-26 Thread Paolo Giannozzi
On Jan 25, 2007, at 13:44 , Lawrence Lee wrote: > In my example, some may use [Ne]3s1.5 for Mg. And you said that > this is > for computational convenience. Can you elaborate more on this point? see atomic_doc/pseudo-gen.tex > By the way, if this config is used, should I correspondingly set

[Pw_forum] About Pseudo-Potential generation

2007-01-25 Thread Lawrence Lee
Dear Paolo, Thanks very much for your answering. But I still do not fully understand your answers about fractional occupation. In my example, some may use [Ne]3s1.5 for Mg. And you said that this is for computational convenience. Can you elaborate more on this point? By the way, if this config

[Pw_forum] About Pseudo-Potential generation

2007-01-24 Thread Paolo Giannozzi
On Jan 23, 2007, at 12:16 , Lawrence Lee wrote: > (1) Comparing Rabe-Rappe-Kaxiras-Joannopoulos and Troullier-Martin > pseudization, it seems that the former is simpler. But actually > which one > is better? my impression is that RRKJ yields softer potentials than TM, but TM always works, RRK

[Pw_forum] About Pseudo-Potential generation

2007-01-23 Thread Lawrence Lee
Dear all, I have serveral questions about PP generation. Please forgive me if there are any stupid question as I am a new in this field. (1) Comparing Rabe-Rappe-Kaxiras-Joannopoulos and Troullier-Martin pseudization, it seems that the former is simpler. But actually which one is better? Do eac