Re: [QE-users] Metal-substituted semiconductor: treat as metal or insulator for phonons

2018-03-03 Thread Pietro Delugas
Hello ChrisIf the system is metallic, no matter how bad a conductor it can be, in a finite time it will be able to screen any constant electric field. This  is as to say that the static dielectric constant is infinite. Regards PietroIl 04 mar 2018 8:03 AM, Christoph Wolf ha scritto:Dear all,I have

[QE-users] Metal-substituted semiconductor: treat as metal or insulator for phonons

2018-03-03 Thread Christoph Wolf
Dear all, I have a fairly general question and I hope I can pick someone's brain: If an insulator or semiconductor is doped with a metal narrow bands determined by the crystal field emerge and often the fermi level lies within one of the bands, i.e. the "bands cut the fermi level", which is often

Re: [QE-users] Error: Segmentation fault - invalid memory reference.

2018-03-03 Thread Paolo Giannozzi
On Sat, Mar 3, 2018 at 1:37 PM, BENYAHIA NEZHA wrote: I think that the LDA+1/2 method is not implemented for PAW, because > when i made another lda-1/2 test for USPP pseudopotential for Sb atom, it > worked normally without any segmentation fault. However, iam interested in > the PAW pseu

[QE-users] Error: Segmentation fault - invalid memory reference.

2018-03-03 Thread BENYAHIA NEZHA
Dear Paolo Giannozzi I think that the LDA+1/2 method is not implemented for PAW, because when i made another lda-1/2 test for USPP pseudopotential for Sb atom, it worked normally without any segmentation fault. However, iam interested in the PAW pseudopotential Is there any solution