Hey Sana Maroof

Do you have experience with QE? If so, there is no explicit tag to directly address Rashba SOC. Instead, Rashba SOC is naturally included when you enable SOC in a system that lacks inversion symmetry, like graphene. Simply proceed as you would for any SCF calculation, adding noncolin = .true. and lspinorb = .true.

If you're not very familiar with QE, I can assist you further in setting up the SCF file.

Best regards,

Gabriel Vinicius

Yes sir i apply these 2 condition with full relativistic pseudo potential but the band structure of graphene does not show soc

Is your structure pure graphene, or does it have something else, such as a 'substrate' underneath?

Sir its 2D monolayer graphene structure its sheet

Pure graphene (2D monolayer), in its pristine form, has inversion symmetry, so Rashba SOC won't appear unless you break this symmetry.

https://escholarship.org/uc/item/6k54c72k sir in this thesis we see first graph they show spin orbital coupling apply rashba effect in pristine graphene..i just want to know how can i do in quantum espresso

The abstract already states that it is not pristine graphene and provides explanations as to why. Skimming through the thesis, there are plenty of details showing that it is not pristine graphene.

So how can i find graphene soc in quantum espresso i just regenerat thes s result for my publication plz helpp

What should I apply into my input files that genertes soc in monolayer graphene