[QE-users] Convergence not achieved in 'relax' calculation

2024-03-19 Thread PRASAD SANKALPA WANNINAYAKA
Dear users, I am studying the properties of Ilmenite using Quantum Espresso 7.2. I have performed a relax calculation for the ilmenite structure but after 400 iterations convergence is not achieved. I have restarted those calculations again but have not achieved convergence. I have attached the

Re: [QE-users] Fermi energy shift in band structure

2024-02-29 Thread PRASAD SANKALPA WANNINAYAKA
On Sat, Feb 24, 2024 at 9:36 PM PRASAD SANKALPA WANNINAYAKA < 2019s17...@stu.cmb.ac.lk> wrote: > Dear QE users, > > I'm new to QE. I'm studying the band structure of ilmenite. To plot the > band structure, I have performed band structure calculations. However, the > fer

[QE-users] Fermi energy shift in band structure

2024-02-24 Thread PRASAD SANKALPA WANNINAYAKA
Dear QE users, I'm new to QE. I'm studying the band structure of ilmenite. To plot the band structure, I have performed band structure calculations. However, the fermi energy has shifted upward compared to the reference plot from the Materials project site. With this email, I have attached plots

Re: [QE-users] Fwd: under estimate the bandgap in Quantum espresso

2024-02-16 Thread PRASAD SANKALPA WANNINAYAKA
're reasonable. > > Best, > > Omar A. Ashour > UC Berkeley > > On Feb 16, 2024, at 4:52 AM, PRASAD SANKALPA WANNINAYAKA < > 2019s17...@stu.cmb.ac.lk> wrote: > >  > Dear Dr.Giovanni Cantele, > Thanks for your reply, I'm using the DFT + U method for calculations

Re: [QE-users] Fwd: under estimate the bandgap in Quantum espresso

2024-02-16 Thread PRASAD SANKALPA WANNINAYAKA
Napoli, Italy > e-mail: giovanni.cant...@spin.cnr.it > Phone: +39 081 676910 > Skype contact: giocan74 > > ResearcherID: http://www.researcherid.com/rid/A-1951-2009 > Web page: https://sites.google.com/view/giovanni-cantele/home > > > Il giorno ven 16 feb 2024 alle ore 10:40 PR

[QE-users] Fwd: under estimate the bandgap in Quantum espresso

2024-02-16 Thread PRASAD SANKALPA WANNINAYAKA
Dear QE users, I am studying the electronic properties of FeTiO3 using QE when calculating the band structure using 'bands.x' calculation. I obtained the bandgap as 0.01eV but according to references that value is 2.54 eV. i need to know why this is happening. Thank you Best regards Prasad

[QE-users] under estimate the bandgap in Quantum espresso

2024-02-15 Thread PRASAD SANKALPA WANNINAYAKA
I am studying the electronic properties of FeTiO3 using QE when calculating the band structure using 'bands.x' calculation. I obtained the bandgap as 0.01eV but according to references that value is 2.54 eV. i need to know why this is happening. -- The information of this email is