I am doing the optimization of a system of 51 atoms containing two dfferent types of atoms C and N using M06 functional.I used the ONCV pseudo potential for both C_ONCV_PBE-1.0.UPF and  N_ONCV_PBE- 1.0  .UPF   for C and N respectively.But I am getting an output with the error :

 

Error in routine C_bands

Too many bands are not converged

 

I changed the pseudo potential for C and N as C_ONCV_PBE-1.2.UPF and  N_ONCV_PBE- 1.2.UPF  . Again it shows the same error

 

Error in routine C_bands

Too many bands are not converged

 

What is the reason behind the problem.How can I solve this ?

 

Thanks in advance

 

_______________________________________________
The Quantum ESPRESSO community stands by the Ukrainian
people and expresses its concerns about the devastating
effects that the Russian military offensive has on their
country and on the free and peaceful scientific, cultural,
and economic cooperation amongst peoples
_______________________________________________
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing list users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users

Reply via email to