[Pw_forum] Temperature in pwscf

2014-10-25 Thread Khalid Ibne Masood Khalid
Dear quantum espresso users, I have a question regarding temperature in pwscf. I want to investigate the temperature dependent band gap in graphene. For this, how can I specify temperature in pwscf code for both relaxation and band calculation. Is it possible ??? Thank you Khalid

Re: [Pw_forum] Raman for graphene

2014-10-25 Thread Ari P Seitsonen
Dear PL Gong, Sometimes the things are not that simple to be programmed and provided to others - please try to learn about the difference between non-resonant and resonant Raman. You can also have a look at the papers of Michele Lazzeri and Francesco Mauri, since they have been working

Re: [Pw_forum] LDA, PBE and PBEsol and Cohesive energy

2014-10-25 Thread Elliot Menkah
Thanks Giuseppe. I think tested for the convergence of ecutrho (as I had not done that earlier) to obtain an optimum value which is actaully giving good results in comparison to experimental data. On 10/23/2014 11:56 AM, Giuseppe Mattioli wrote: > Dear Elliot > >> Problem 1 > Ni.pbesol-n-

Re: [Pw_forum] LDA, PBE and PBEsol and Cohesive energy

2014-10-25 Thread Elliot Menkah
Thank Prof. Marzari you for pointing me in the right direction. I also looked up the lectures. And I'm ansciously waitng for the the https://molmod.ugent.be/deltacodesdftto get back online. On 10/23/2014 11:40 AM, Nicola Marzari wrote: > > Dear Elliot, > > Problem 1 > the trend LDA <