[Wien] Error in initialization step for Si example

2019-10-31 Thread Eesha Andharia
Dear Developers, I have always been able to successfully do the initialization step. However, I get the following error message while doing initialization and it stops working. *How should I proceed?* * next is symmetry> symmetry(20:44:26) forrtl: severe (24): end-of-file during r

[Wien] GAP2 - Calculating screened coulomb interaction - w

2019-10-04 Thread Eesha Andharia
Hi, How and in which step is the dielectric matrix calculated while performing the GW calculations using GAP2? Do we use generalized plasmon pole model or is it a full frequency calculation? Warm regards, Eesha ___ Wien mailing list Wien@zeus.theoche

[Wien] Re. using GAP2 to perform GoWo on Half-metallic Heusler alloys

2019-10-04 Thread Eesha Andharia
Hi Developers, I need an expert advice regarding the use of GAP2 for performing GoWo calculations on Half metallic Heusler alloys. When I go to GAP2 website, I see the following *limitations**:* only 20 atoms for accuracy, *no use for 2D-systems or surfaces and cannot be used for metallic syste

[Wien] GW calculations using FHI or GAP2?

2019-09-26 Thread Eesha Andharia
Hi, I want to perform GW calculation on Wein2k DFT values. Now, I am more confused. Should I use FHI gap or GAP2? Is GAP2 a new verion of FHI gap? Further if these are freely available, I do not see download link on any of their websites. Also, can I use FHI gap or GAP2 with w2web graphical int

[Wien] Reg. Performing GW Calculations using Wien2k

2019-09-23 Thread Eesha Andharia
Hi, I, Eesha, am pursuing Phd AT university of Arkansas. I have some experience with GW calculations using Berkeley-GW code. However, it has limitations and also, I want to use a more accurate full-potential code Wien2k. I have the following questions related to GW on WIen2k. 1) I know that FHI-G