Hi Weslley,

 

Thank you very much for your advice!

 

After reading the manual of Denchar, I found that this code is similar with 
rho2xsf. I can also define my own XYZ grid and finally obtain a file, named 
.XSF, with the following format. 

However, what exactly is the density value for the position, e.g. (2, 0, 0)?

 

# systemLabel.XSF

ATOMS

  26          4.88240022         -0.08352631          0.00006140

  26          6.15692301          2.91460609          0.00000436

…

  26          1.84258624          3.60793081         -1.42032133

  26          4.99807464          4.87996835         -1.57094524

  26          6.09310871          7.32127741         -1.45258353

  26          7.95044995          3.67018655         -1.42977940

  26          3.70962202          7.27176411         -1.47336896

   2          3.66994589          3.47611895          0.00087005

   2          4.41715376          2.02051489         -0.00081967

BEGIN_BLOCK_DATAGRID_3D

 DATA_from:FeHesub.DRHO

 BEGIN_DATAGRID_3D_DRHO:spin_1

   106   112    90                                                              
                            # my definition for grids

  1.8000000E+00 -1.0000000E-01 -2.0000000E+00                                 # 
                       for origin

  8.0000000E+00  0.0000000E+00  0.0000000E+00                                 # 
                       for origin

  0.0000000E+00  8.0000000E+00  0.0000000E+00

  0.0000000E+00  0.0000000E+00  6.0000000E+00 

 -1.38841E-03 -1.31591E-03 -1.27415E-03 -1.25845E-03 -1.24830E-03 -1.22782E-03  
         # charge for PIN_UP

 -1.20458E-03 -1.17644E-03 -1.13945E-03 -1.10145E-03 -1.07345E-03 -1.06778E-03

 -1.08766E-03 -1.13587E-03 -1.21489E-03 -1.31853E-03 -1.43500E-03 -1.56127E-03

 -1.69482E-03 -1.83016E-03 -1.95622E-03 -2.06447E-03 -2.14878E-03 -2.20475E-03

 -2.22827E-03 -2.20652E-03 -2.12539E-03 -1.98227E-03 -1.75469E-03 -1.42163E-03

 -9.67779E-04 -3.72732E-04  3.94846E-04  1.36330E-03  2.51582E-03  3.83300E-03

  5.24905E-03  6.65572E-03  7.90497E-03  8.81380E-03  9.23699E-03  9.10112E-03

  8.42834E-03  7.33264E-03  5.97637E-03  4.52817E-03  3.13710E-03  1.88167E-03

  8.06114E-04 -7.24776E-05 -7.47507E-04 -1.26632E-03 -1.65272E-03 -1.93084E-03

 -2.11756E-03 -2.22112E-03 -2.26403E-03 -2.24870E-03 -2.19120E-03 -2.10496E-03

 -1.99538E-03 -1.86868E-03 -1.73307E-03 -1.59869E-03 -1.47700E-03 -1.37597E-03

 -1.28993E-03 -1.23082E-03 -1.18704E-03 -1.15517E-03 -1.11946E-03 -1.08978E-03

 -1.05914E-03 -1.01949E-03 -9.65953E-04 -8.96622E-04 -8.17461E-04 -7.38097E-04

 -6.44861E-04 -5.87127E-04 -5.82667E-04 -6.33176E-04 -7.40719E-04 -9.09593E-04

 -1.12436E-03 -1.36253E-03 -1.59740E-03 -1.80011E-03 -1.92620E-03 -1.91662E-03

 -1.75328E-03 -1.39584E-03 -7.76065E-04  1.99780E-04  1.66756E-03  3.85481E-03

  7.11264E-03  1.19011E-02  1.87853E-02  2.83026E-02  4.07044E-02  5.55967E-02

  7.16452E-02  8.65794E-02  9.76430E-02  1.02481E-01 -1.96892E-03 -1.87333E-03

 -1.78008E-03 -1.67960E-03 -1.54126E-03 -1.36418E-03 -1.16541E-03 -9.50314E-04

 -7.29789E-04 -5.20021E-04 -3.41712E-04 -2.16724E-04 -1.56353E-04 -1.67128E-04

 -2.55162E-04 -4.11668E-04 -6.22298E-04 -8.62564E-04 -1.10974E-03 -1.35241E-03

 -1.57851E-03 -1.77418E-03 -1.92991E-03 -2.04025E-03 -2.10153E-03 -2.10917E-03

 -2.04315E-03 -1.89085E-03 -1.63939E-03 -1.26519E-03 -7.54049E-04 -7.42874E-05

  8.07627E-04  1.92640E-03  3.26230E-03  4.79884E-03  6.47601E-03  8.16225E-03

  9.66424E-03  1.07630E-02  1.12784E-02  1.11169E-02  1.03061E-02  8.98425E-03

  7.35444E-03  5.62942E-03  3.98765E-03  2.52960E-03  1.29317E-03  2.80759E-04

 -4.96747E-04 -1.08476E-03 -1.51833E-03 -1.82481E-03 -2.02718E-03 -2.13098E-03

 -2.15088E-03 -2.09996E-03 -1.99896E-03 -1.85410E-03 -1.67151E-03 -1.45910E-03

 -1.23033E-03 -1.00228E-03 -7.92862E-04 -6.09925E-04 -4.71887E-04 -3.99387E-04

 -3.75643E-04 -4.00874E-04 -4.54887E-04 -5.46884E-04 -6.59238E-04 -7.76363E-04

 -8.86315E-04 -9.82501E-04 -1.06423E-03 -1.13222E-03 -1.16198E-03 -1.19549E-03

 -1.24500E-03 -1.31885E-03 -1.41988E-03 -1.55406E-03 -1.71279E-03 -1.88134E-03

 -2.04065E-03 -2.16515E-03 -2.21541E-03 -2.15413E-03 -1.94014E-03 -1.52900E-03

 -8.52978E-04  1.87195E-04  1.73808E-03  4.05135E-03  7.49216E-03  1.25596E-02

  1.98610E-02  2.99696E-02  4.31454E-02  5.89619E-02  7.60048E-02  9.18782E-02

  1.03677E-01  1.08877E-01 -2.36784E-03 -2.23082E-03 -2.06479E-03 -1.86106E-03

 -1.59334E-03 -1.25825E-03 -8.65193E-04 -4.40041E-04 -3.49091E-06  4.15233E-04

  7.80971E-04  1.05700E-03  1.21791E-03  1.24918E-03  1.14240E-03  9.11142E-04

  5.79221E-04  1.75583E-04 -2.42317E-04 -6.45235E-04 -1.01625E-03 -1.33831E-03

 -1.59828E-03 -1.78929E-03 -1.90850E-03 -1.95382E-03 -1.91890E-03 -1.77110E-03

…

 

 

Thank you very much!

 

Best wishes!

Yours sincerely,

Leila

 

发件人: [email protected] [mailto:[email protected]] 代表 Weslley Souza 
Patrocinio
发送时间: 2010年9月10日 19:53
收件人: [email protected]
主题: Re: [SIESTA-L] How to read charge density at a given position?

 

Hi, Leila.

 

You can use the Denchar (one of the Siesta utils) to generate the charge 
density distribution. In the input file of you will define the region in the 
space that you want to calculate the charge density and the number of 
discretization points, so you can build your own XYZ grid and choose the points 
that are important.

 

Good luck!

Yours,

 

Weslley.



-- 
Weslley Souza Patrocinio

Pesquisador
Departamento de Nanotecnologia
Centro de Pesquisas Avançadas Wernher von Braun

e-mail: [email protected]
skype: weslley.vonbraun

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