[Wannier] plot wf of GaAs
lan haiping
lanhaiping at gmail.com
Tue Mar 4 12:33:27 CET 2008
Hi, Nafise,
I think you can increase wannier_plot_supercell to 3 .
it really does matter with isosurface's shape of wannier function.
On Tue, Mar 4, 2008 at 12:26 PM, nafise rezaei <nafiserb at gmail.com> wrote:
> Dear Nicola,
> i'm sorry,i donot know mail body is limited.
> for GaAs,
> first i run scf and nscf [ 1)espresso-3.2.3/bin/pw.x <gaas.scf ]
> [2)espresso-3.2.3/bin/pw.x <gaas.nscf]
> INPUT files for these are:
> FOR SCF:
> &control
> prefix='GaAs',
> pseudo_dir = '/home/rezaei/espresso-3.2.3/pseudo/',
> outdir='/scratch/rezaei/tmp/GaAs/'
> /
> &system
> ibrav= 2, celldm(1) =10.734, nat= 2, ntyp= 2,
> ecutwfc = 50.0,
>
> /
> &electrons
> conv_thr = 1.0d-12
> /
> ATOMIC_SPECIES
> Ga 69.72 Ga.pz-bhs.UPF
> As 74.922 As.gon.UPF
> ATOMIC_POSITIONS
> Ga 0.00 0.00 0.00
> As 0.25 0.25 0.25
> K_POINTS {automatic}
> 10 10 10 1 1 1
>
>
> FOR NSCF
> &control
> calculation='nscf'
> prefix='GaAs',
> pseudo_dir = '/home/rezaei/espresso-3.2.3/pseudo/',
> outdir='/scratch/rezaei/tmp/GaAs/'
> /
> &system
> ibrav= 2, celldm(1) =10.734, nat= 2, ntyp= 2,
> ecutwfc = 50.0,
> /
> &electrons
> conv_thr = 1.0d-12
> /
> ATOMIC_SPECIES
> Ga 69.72 Ga.pz-bhs.UPF
> As 74.922 As.gon.UPF
>
> ATOMIC_POSITIONS
> Ga 0.00 0.00 0.00
> As 0.25 0.25 0.25
> K_POINTS {crystal}
> 0.00000000 0.00000000 0.00000000 1.562500e-02
> 0.00000000 0.00000000 0.25000000 1.562500e-02
> 0.00000000 0.00000000 0.50000000 1.562500e-02
> 0.00000000 0.00000000 0.75000000 1.562500e-02
> 0.00000000 0.25000000 0.00000000 1.562500e-02
> 0.00000000 0.25000000 0.25000000 1.562500e-02
> ............
> .......... regular k-point grid is 4*4*4
>
>
>
> 2) i run [wannier90-1.1/wannier90.x -pp gaas]
> my INPUT file (gaas.win) for wannier is
> num_wann = 4
> num_iter = 500
> length_unit = bohr
> ! SYSTEM
> begin unit_cell_cart
> bohr
> -5.367 0.000 5.367
> 0.000 5.367 5.367
> -5.367 5.367 0.000
> end unit_cell_cart
>
> begin atoms_frac
> Ga 0.00 0.00 0.00
> As 0.25 0.25 0.25
> end atoms_frac
>
> begin projections
> As:sp3
> end projections
> ! wannier_plot = true
> ! restart = plot
> ! bands_plot = true
> ! begin kpoint_path
> ! L 0.50000 0.50000 0.5000 G 0.00000 0.00000 0.0000
> ! G 0.00000 0.00000 0.0000 X 0.50000 0.00000 0.5000
> ! X 0.50000 -0.50000 0.0000 K 0.37500 -0.37500 0.0000
> ! K 0.37500 -0.37500 0.0000 G 0.00000 0.00000 0.0000
> ! end kpoint_path
>
> ! KPOINTS
> mp_grid : 4 4 4
>
> begin kpoints
> 0.00000000 0.00000000 0.00000000
> 0.00000000 0.00000000 0.25000000
> 0.00000000 0.00000000 0.50000000
> 0.00000000 0.00000000 0.75000000
> .......
> ..........
> 3) i run pw2wan [espresso-3.2.3/bin/pw2wannier90.x <gaas.pw2wan ]
> gaas.pw2wan is
> &inputpp
> outdir = '/scratch/rezaei/tmp/GaAs/'
> prefix = 'GaAs'
> seedname = 'gaas'
> write_amn = .true.
> write_mmn = .true.
> write_unk = .true.
> /
> 4)then i run [wannier90-1.1/wannier90.x gaas]
> 5) then i add wannier_plot = TRUE
> 6) generat four file *.xsf
> i plot them . [xcrysden --xscf gaas_ooo1.xsf]
> shape of wannier function for gaas_ooo1.xsf (isovalue=0.095 ) i have
> attached.
> why it isnot similar to your shape of wannier function??
> i also had 4,5,6 steps for wannier90-1.1/example/example but shape isnot
> to your shape of hompage?
> these shape also attached.(isovalue is 0.5)
>
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>
--
Hai-Ping Lan
Department of Electronics ,
Peking University , Bejing, 100871
lanhaiping at gmail.com, hplan at pku.edu.cn
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