Dear Stefano I now that these are affinity and ionization, But I don't understand why ionization always is grater than affinity? I just want to know the physical reason.
Thanks a lot Ali Kazempour Physics Department, Isfahn University of Technology ----- Original Message ----- From: "Stefano de Gironcoli" <[email protected]> To: "PWSCF Forum" <pw_forum at pwscf.org> Sent: Monday, May 3, 2010 6:10:25 PM Subject: Re: [Pw_forum] add or remove electron energy it is the difference between electron affinity and ionization potential. stefano kazempoor at ph.iut.ac.ir wrote: > Dear All > I add one electron to an isolated atom and the difference in > E(n+1)-E(n)=-0.09 Ryd but when I remove an electron from this atom > I got E(n)-E(n-1)=-0.349 Ryd. > what is the reason for this difference? I think that this behavior is same > for every system. > Thanks a lot > Ali Kazempour > Physics Department, Isfahan University of Technology > _______________________________________________ > Pw_forum mailing list > Pw_forum at pwscf.org > http://www.democritos.it/mailman/listinfo/pw_forum > _______________________________________________ Pw_forum mailing list Pw_forum at pwscf.org http://www.democritos.it/mailman/listinfo/pw_forum
