[Pw_forum] the unit of N(Ef) in the output of lambda.x

Yue-Wen Fang yuewen.fang at gmail.com
Mon Jan 29 02:42:53 CET 2018


Dear all,

After reading through the related source codes, I think I have got the
solution. The unit of N(Ef) in electron phonon calculations is states/Ry.

Thank you very much.

Bests
Yuewen

2018-01-28 19:56 GMT+09:00 Yue-Wen Fang <yuewen.fang at gmail.com>:

> Dear all,
>
> In the example03 of PHonon, the output is:
>
>      lambda = 0.290653 (  0.290650)  <log w>=  394.512K  N(Ef)= 1.338761
> at degauss=0.005
>
>      lambda = 0.433066 (  0.431806)  <log w>=  354.413K  N(Ef)= 1.881758
> at degauss=0.010
>
>      lambda = 0.423533 (  0.420938)  <log w>=  342.551K  N(Ef)= 2.123243
> at degauss=0.015
>
>      lambda = 0.394886 (  0.392086)  <log w>=  337.523K  N(Ef)= 2.249755
> at degauss=0.020
>
>      lambda = 0.373648 (  0.371072)  <log w>=  333.960K  N(Ef)= 2.329819
> at degauss=0.025
>
>      lambda = 0.364263 (  0.361951)  <log w>=  330.940K  N(Ef)= 2.396041
> at degauss=0.030
>
>      lambda = 0.363628 (  0.361498)  <log w>=  328.520K  N(Ef)= 2.455234
> at degauss=0.035
>
>      lambda = 0.367961 (  0.365924)  <log w>=  326.679K  N(Ef)= 2.507879
> at degauss=0.040
>
>      lambda = 0.374619 (  0.372618)  <log w>=  325.312K  N(Ef)= 2.552970
> at degauss=0.045
>
>      lambda = 0.381512 (  0.379521)  <log w>=  324.330K  N(Ef)= 2.589584
> at degauss=0.050
>
> lambda        omega_log          T_c
>
>    0.29065       394.512              0.138
>
>    0.43307       354.413              2.273
>
>    0.42353       342.551              1.962
>
>    0.39489       337.523              1.316
>
>    0.37365       333.960              0.928
>
>    0.36426       330.940              0.778
>
>    0.36363       328.520              0.763
>
>    0.36796       326.679              0.821
>
>    0.37462       325.312              0.919
>
>    0.38151       324.330              1.028
>
>
> Could anyone tell me the unit of N(Ef)? Is this value same as the one in a
> density of states calculation?
>
> Thank you very much.
>
> Bests
> Yuewen
> --
> ------------------------------------------------------------
> ------------------------------------------------
> Yue-Wen FANG, PhD
> Kyoto University, Japan
>
>
>
>


-- 
------------------------------------------------------------------------------------------------------------
Yue-Wen FANG, PhD
Kyoto University, Japan
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