<div dir="ltr">Dear Researchers<div><br></div><div>Could you please tell me how can I calculate electron affinity using quantum espresso pwscf package? In a reference, I found the definition to be: </div><div><br></div><div>"However, a different definition holds
for finite systems. In this case, the electron affinity is defined as EA=E(N)-E(N+1)
where E(N) and E(N+1) are the total ground-state energies in the neutral (N) and
single charged (N+1) configurations"</div><div><br></div><div>---<a href="http://arxiv.org/pdf/0801.1961.pdf">http://arxiv.org/pdf/0801.1961.pdf</a></div><div><br></div><div>If I want to calculate affinity for MoS2 monolayer, according to this reference, I need to calculate ground state energy for neutral system and then charged system and then find out the difference between the two. Is this sufficient? Please let me know.</div><div><br></div><div>Thanks in advance.</div><div><br></div><div>Sincerely yours</div><div>Kanak Datta</div><div>Dept. of EEE, BUET</div></div>