Re: [QE-users] Problem with computed bandgap

2025-06-30 Thread AISWARYA CHANDRAN via users
Dear Lorenzo, Thank you very much for your response and for sharing the details regarding your study on Ce₂O₂S. I tried using the same high-precision Ce pseudopotential (Ce.pbe-spdfn-rrkjus_psl.1.0.0.UPF) from the PSLibrary, but unfortunately, I wasn't able to reproduce the results you mentioned.

Re: [QE-users] Problem with computed bandgap

2025-06-29 Thread Lorenzo Paulatto
Hello, when studying the similar compoiunf Ce2O2S, I only had good results usign the high-precision Ce pseudopotential Ce.pbe-spdfn-rrkjus_psl.1.0.0.UPF from the pslibrary that includes 5s5p6s4d5d4f in valence (22 electrons in valence) and requires a ridiculous 200 Ry cutoff to converge, desp

[QE-users] Problem with computed bandgap

2025-06-29 Thread AISWARYA CHANDRAN via users
Dear Quantum ESPRESSO developers and users, I am working on Ce₂O₃ and trying to reproduce the experimentally reported band gap (~2.4–2.7 eV) using LDA+U in combination with spin–orbit coupling (SOC) in Quantum ESPRESSO. However, despite using U = 6 eV and including SOC via fully relativistic pseud