<pre><span style="line-height: normal;">Hi! All
I have calculated the superconductivity temperature (T_c) using PWSCF5.1, but I don't konow which T_c should I select. The lambda.out file is shown below. The convergence value of T_c is about 20 K at degauss=0.50. But I think, the degauss value is too high. So does T_c=20 K is reasonable?
<br></span></pre><pre><span style="line-height: normal;"> lambda = 0.189642 ( 0.189293) <log w>= 868.577K N(Ef)= 2.282784 at degauss=0.020
lambda = 0.225349 ( 0.225151) <log w>= 824.337K N(Ef)= 2.501259 at degauss=0.040
lambda = 0.268664 ( 0.268490) <log w>= 826.683K N(Ef)= 2.807269 at degauss=0.060
lambda = 0.305953 ( 0.305711) <log w>= 834.678K N(Ef)= 3.116082 at degauss=0.080
lambda = 0.337887 ( 0.337570) <log w>= 838.878K N(Ef)= 3.394924 at degauss=0.100
lambda = 0.368098 ( 0.367726) <log w>= 836.917K N(Ef)= 3.646690 at degauss=0.120
lambda = 0.399433 ( 0.399031) <log w>= 828.882K N(Ef)= 3.878951 at degauss=0.140
lambda = 0.432727 ( 0.432336) <log w>= 815.718K N(Ef)= 4.096595 at degauss=0.160
lambda = 0.467553 ( 0.467219) <log w>= 799.440K N(Ef)= 4.301970 at degauss=0.180
lambda = 0.503118 ( 0.502885) <log w>= 782.463K N(Ef)= 4.495636 at degauss=0.200
lambda = 0.538240 ( 0.538141) <log w>= 766.386K N(Ef)= 4.676941 at degauss=0.220
lambda = 0.571782 ( 0.571836) <log w>= 752.378K N(Ef)= 4.844604 at degauss=0.240
lambda = 0.603029 ( 0.603241) <log w>= 740.900K N(Ef)= 4.997265 at degauss=0.260
lambda = 0.631527 ( 0.631891) <log w>= 732.094K N(Ef)= 5.133888 at degauss=0.280
lambda = 0.656678 ( 0.657184) <log w>= 725.565K N(Ef)= 5.253952 at degauss=0.300
lambda = 0.678616 ( 0.679248) <log w>= 721.060K N(Ef)= 5.357470 at degauss=0.320
lambda = 0.697467 ( 0.698207) <log w>= 718.221K N(Ef)= 5.444908 at degauss=0.340
lambda = 0.713189 ( 0.714022) <log w>= 716.654K N(Ef)= 5.517070 at degauss=0.360
lambda = 0.726153 ( 0.727065) <log w>= 716.244K N(Ef)= 5.574981 at degauss=0.380
lambda = 0.736509 ( 0.737483) <log w>= 716.652K N(Ef)= 5.619785 at degauss=0.400
lambda = 0.744609 ( 0.745634) <log w>= 717.738K N(Ef)= 5.652671 at degauss=0.420
lambda = 0.750644 ( 0.751709) <log w>= 719.388K N(Ef)= 5.674820 at degauss=0.440
lambda = 0.754762 ( 0.755859) <log w>= 721.377K N(Ef)= 5.687369 at degauss=0.460
lambda = 0.757349 ( 0.758468) <log w>= 723.722K N(Ef)= 5.691388 at degauss=0.480
lambda = 0.758516 ( 0.759650) <log w>= 726.340K N(Ef)= 5.687870 at degauss=0.500
lambda = 0.758469 ( 0.759614) <log w>= 729.163K N(Ef)= 5.677722 at degauss=0.520
lambda = 0.757196 ( 0.758346) <log w>= 732.148K N(Ef)= 5.661772 at degauss=0.540
lambda = 0.755147 ( 0.756297) <log w>= 735.273K N(Ef)= 5.640764 at degauss=0.560
lambda = 0.752240 ( 0.753387) <log w>= 738.456K N(Ef)= 5.615367 at degauss=0.580
lambda = 0.748602 ( 0.749743) <log w>= 741.707K N(Ef)= 5.586178 at degauss=0.600
lambda omega_log T_c
0.18964 868.577 0.000
0.22535 824.337 0.000
0.26866 826.683 0.001
0.30595 834.678 0.016
0.33789 838.878 0.096
0.36810 836.917 0.304
0.39943 828.882 0.728
0.43273 815.718 1.458
0.46755 799.440 2.542
0.50312 782.463 3.963
0.53824 766.386 5.634
0.57178 752.378 7.435
0.60303 740.900 9.259
0.63153 732.094 11.027
0.65668 725.565 12.656
0.67862 721.060 14.128
0.69747 718.221 15.432
0.71319 716.654 16.549
0.72615 716.244 17.499
0.73651 716.652 18.282
0.74461 717.738 18.919
0.75064 719.388 19.419
0.75476 721.377 19.786
0.75735 723.722 20.048
0.75852 726.340 20.210
0.75847 729.163 20.285
0.75720 732.148 20.269
0.75515 735.273 20.197
0.75224 738.456 20.058
0.74860 741.707 19.862</span></pre><pre><span style="line-height: normal;">Thanks in advance.
<br></span></pre><pre><pre style="line-height: normal;">with regards<span id="_editor_bookmark_start_4" style="display: none; line-height: 0px;"></span></pre><span style="line-height: normal;">Yan<span id="_editor_bookmark_start_3" style="display: none; line-height: 0px;"></span></span></pre>