On Thursday 01 September 2005 15:43, XiaoSong Du wrote: > In the test of electron-phonon coefficient, the lambda was > calculated using several values of gaussian broadening from > 0.01-0.1, but the input file of non-scf calculation has already > gotten a degauss value of 0.022
they serve different purposes and so they are different > And how i can control gaussian broadening range? see file PH/elphon.f90, routine elphsum, parameters 'nsig' and 'degauss1' > What's the meaning of three gammas in parallel to lambda? lambda = gamma/(pi N(Ef) omega^2) There is some documentation on electron-phonon calculations in the manual and in example 7. The answer to many questions can ofter be found in the archives of pw_forum, that are accessible (and searchable) via the www.pwscf.org web site Paolo -- Paolo Giannozzi e-mail: giannozz at nest.sns.it Scuola Normale Superiore Phone: +39/050-509876, Fax:-563513 Piazza dei Cavalieri 7 I-56126 Pisa, Italy
