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wave-function modulus square plot

Anton
2008-06-03
2013-06-05
  • Anton

    Anton - 2008-06-03

    Dear Exciting developers!
    I want to plot the 1D/2D function of |Psi_{ik}|^2 and I get some strange results.
    Please, have a look:
    (1D) http://www.imagebam.com/image/84e46b7238615
    (2D) http://www.imagebam.com/image/49bbb27238617
    This is definitely not a "smooth" wave-function. Now I'm trying to find the source of error, but I'll appreciate
    your help or advise.

    Best regards,
    Anton.

    --- exciting.in ----

    tasks
      61
      62

    nempty
      10

    autormt
      .true.
           
    avec
       0.000000000       6.602743505       0.000000000   
       7.386791187       0.000000000       0.000000000   
       3.693395594       3.301371753       11.99132804   

    atoms
       3                                    : nspecies
    'Sr.in'                                 : spfname
       2                                    : natoms; atposl, bfcmt below
        0.64804100    0.64804100    0.70391800    0.00000000  0.00000000  0.00000000
        0.35195900    0.35195900    0.29608200    0.00000000  0.00000000  0.00000000
    'Cu.in'                                 : spfname
       1                                    : natoms; atposl, bfcmt below
        0.00000000    0.00000000    0.00000000    0.00000000  0.00000000  0.00000000
    'O.in'                                  : spfname
       3                                    : natoms; atposl, bfcmt below
        0.84554890    0.84554890    0.30890220    0.00000000  0.00000000  0.00000000
        0.15445110    0.15445110    0.69109780    0.00000000  0.00000000  0.00000000
        0.00000000    0.50000000    0.00000000    0.00000000  0.00000000  0.00000000

    plot2d
    0.00000000    0.00000000    0.00000000                                                                                                                                           
    0.1544511000      0.1544511000     -0.3089022000                                                                                                                            
    0.00000000    0.50000000    0.00000000
    200 200

    plot1d
      2
      500
      0 0 0
      0.00000000    0.50000000    0.00000000

    kstlist
    1 20
            
    ngridk
      4 4 4

     
    • Anton

      Anton - 2008-06-04

      Another fancy picture for LDA+U calc:

      http://www.imagebam.com/image/730ab37276062

      In some r-points inside the MT the plot of |Psi|^2 is negative! The small circle inside the copper MT is puzzlig.

      --- exciting.in ---
      tasks
        62
       
      avec
        0.15400277 -0.50000000 -0.13765665                                                                                               
        0.15400277  0.50000000 -0.13765665                                                                                               
        0.00000000  0.00000000  0.55062659

      scale
        23.982656

      autormt
        .true.

      spinpol
        .true.
       
      nempty
        20

      beta0
        0.05

      ngridk
        2 2 2 
       
      kstlist
        1 56

      plot2d
         0.5  -0.5  0.0
         1.5 -1.5  0.0
         4.5  3.5  2.0
        600 600
          
      atoms
        3
        'Sr.in'
        4
        -0.648041 0.648041 0.           0 0 0
        0.648041 -0.648041 0.           0 0 0
        0.351959 0.648041 0.5           0 0 0
      -0.351959 -0.648041 -0.5         0 0 0
      'Cu.in'
        2
        0. 0. 0.                        0 0 0.1
        0. 1. 0.5                       0 0 -0.1
        'O.in'
        6
        -0.845549 0.845549 0.           0 0 0                                                                                                                             
         0.845549 -0.845549 0.          0 0 0                                                                                                                  
         0.154451 0.845549 0.5          0 0 0                                                                                                                 
        -0.154451 -0.845549 -0.5        0 0 0                                                                                                                
         0.5 0.5 0.25                   0 0 0                                                                                                                 
        -0.5 -0.5 -0.25                 0 0 0

      lda+u
        1
        2 2 0.165 0.0

      lmaxapw
        7
       
      lmaxvr
        7
       
      epspot
        0.001

       
    • ckoe

      ckoe - 2008-07-01

      Hello everybody.

      Was there any solution to the negative density ?

      Best Regards

      Christof

       
    • Anton

      Anton - 2008-07-06

      Christof:
      to my oppinion negative density (of the order of 1d-7) of Kohn-Sham orbitals is a numerical issue related to the backward and forward spherical harmonic transformations.

      Anton.

       
    • alexib

      alexib - 2008-08-05

      Dear Colleagues,

      it looks like the WF square jump happens at the radius inside which the smaller angular momentum is used for density and potential (lmaxinr). You might try to increase this parameter from default 2 to say 4.

      With best regards,

      Alexib.

       

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