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DFT for doped sample

Elk Users
SHIVAM
2018-05-18
2018-06-22
  • SHIVAM

    SHIVAM - 2018-05-18

    Dear Users,
    Can you please tell me how to calculate task '0' for doped sample?
    What to add in elk .in file if we want to see the effect of magnetic field because bfieldc is not working for copper.

     
  • mfechner

    mfechner - 2018-06-18

    Dear SHIVAM,

    the simplest apporach to describe doping is either:

    1) to use a large supercell and replace one atom with a dopant of your choice

    2) second option is to manipulate the electron count to ''simulate'' electron or hole doping using
    chgexs (see manuael)

    Regarding your comment on Cu I guess if it doesent become metallic in the end a spin polarized state is not a stable minimum, You can post your input here and I could have a look.

    best
    Michael

     
  • Anonymous

    Anonymous - 2018-06-22

    dear users,
    can you please tell me to calculate task '0' and task '1', '20'. for doped sample?
    what to add in elk.in file if we want to see magnetic field effect.In my sample Bi2Se3, Fe doped at bismuth side and sulphur doped at Se side.Programme file is given below.Please guide me .
    tasks
    1
    20

    xctype
    20

    autolinengy
    true

    nempty
    10

    ngridk
    6 6 6

    sppath
    "../species/"

    spinorb
    .true.

    fspecies
    -79.58 'bng'

    fspecies
    -59.92 'bsb'

    plot1d
    5 30
    0.0000000000 0.0000000000 0.0000000000
    0.0000000000 0.0000000000 0.5000000000
    0.0000000000 0.5000000000 0.5000000000
    0.0000000000 0.0000000000 0.0000000000
    0.0000000000 0.5000000000 0.0000000000

    avec
    0.5773502692 0.0000000000 2.3038541088
    -0.2886751346 0.5000000000 2.3038541088
    -0.2886751346 -0.5000000000 2.3038541088

    scale
    7.8270565336

    atoms
    3 : nspecies
    'bng.in' : spfname = Bi/Fe
    2
    0.404090000000000 0.404090000000000 0.404090000000000 0.00000000 0.00000000 0.00000000
    0.595910000000000 0.595910000000000 0.595910000000000 0.00000000 0.00000000 0.00000000
    'Se.in' : spfname
    1
    0.000000000000000 0.000000000000000 0.000000000000000 0.00000000 0.00000000 0.00000000
    'bsb.in' : spfname = Se/S
    2
    0.212570000000000 0.212570000000000 0.212570000000000 0.00000000 0.00000000 0.00000000
    0.787430000000000 0.787430000000000 0.787430000000000 0.00000000 0.00000000 0.00000000

     

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