Dear All,
I am working on the tutorial of Pb with SOC. Electron and Phonon band structure calculations with SOC seems to be fine. But epw calculation produces a lambda which is basically zero. Also, the calculation without SOC can reproduce results on website. I would like to ask how can I diagnose the problem with SOC calculation for this case? Thank you.
Cheers
Jia
Tutorial Pb with SOC produces no coupling
Moderator: stiwari
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Re: Tutorial Pb with SOC produces no coupling
Dear Jia,
Are you using the examples provided in EPW? If not, could you post you inputs and running scripts?
Carla
Are you using the examples provided in EPW? If not, could you post you inputs and running scripts?
Carla
Re: Tutorial Pb with SOC produces no coupling
Dear Carla,
Yes, I was using example files. For convenience, I copy the input file below. Appreciate your help.
Yes, I was using example files. For convenience, I copy the input file below. Appreciate your help.
Code: Select all
&inputepw
prefix = 'pb',
amass(1) = 207.2
outdir = './'
elph = .true.
kmaps = .false.
epbwrite = .false.
epbread = .false.
epwwrite = .true.
epwread = .false.
nbndsub = 8
nbndskip = 10
wannierize = .true.
num_iter = 300
dis_win_max = 21
dis_win_min = -3
dis_froz_min= -3
dis_froz_max= 13.5
proj(1) = 'Pb:sp3'
wdata(1) = 'bands_plot = .true.'
wdata(2) = 'begin kpoint_path'
wdata(3) = 'G 0.00 0.00 0.00 X 0.00 0.50 0.50'
wdata(4) = 'X 0.00 0.50 0.50 W 0.25 0.50 0.75'
wdata(5) = 'W 0.25 0.50 0.75 L 0.50 0.50 0.50'
wdata(6) = 'L 0.50 0.50 0.50 K 0.375 0.375 0.75'
wdata(7) = 'K 0.375 0.375 0.75 G 0.00 0.00 0.00'
wdata(8) = 'G 0.00 0.00 0.00 L 0.50 0.50 0.50'
wdata(9) = 'end kpoint_path'
wdata(10) = 'bands_plot_format = gnuplot'
iverbosity = 0
elecselfen = .true.
phonselfen = .true.
parallel_k = .true.
parallel_q = .false.
fsthick = 6 ! eV
eptemp = 0.0 ! K
degaussw = 0.005 ! eV
degaussq = 0.05 !meV
a2f = .true.
dvscf_dir = '../phonons/save'
nk1 = 6
nk2 = 6
nk3 = 6
nq1 = 6
nq2 = 6
nq3 = 6
nkf1 = 20
nkf2 = 20
nkf3 = 20
nqf1 = 20
nqf2 = 20
nqf3 = 20
/
16 cartesian
0.000000000 0.000000000 0.000000000 0.0092593
-0.166666667 0.166666667 -0.166666667 0.0740741
-0.333333333 0.333333333 -0.333333333 0.0740741
0.500000000 -0.500000000 0.500000000 0.0370370
0.000000000 0.333333333 0.000000000 0.0555556
-0.166666667 0.500000000 -0.166666667 0.2222222
0.666666667 -0.333333333 0.666666667 0.2222222
0.500000000 -0.166666667 0.500000000 0.2222222
0.333333333 0.000000000 0.333333333 0.1111111
0.000000000 0.666666667 0.000000000 0.0555556
0.833333333 -0.166666667 0.833333333 0.2222222
0.666666667 -0.000000000 0.666666667 0.1111111
0.000000000 -1.000000000 0.000000000 0.0277778
0.666666667 -0.333333333 1.000000000 0.2222222
0.500000000 -0.166666667 0.833333333 0.2222222
-0.333333333 -1.000000000 0.000000000 0.1111111