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vacancies with FEFF??



Dear feff users,

I am also interested in the calculation of ELNES taking into account 
vacancies. I am attaching the input file that I used for it. Basically I 
removed some atoms from different coordination shells and used the 
CFAVERAGE card. I found that the xmu.dat file is not generated.

It is the CFAVERAGE card suitable for this purposes?, or it is only 
working for EXAFS work?.

Has some of you have some experience with this type of calculations?.

I would appreciate very much any comment or suggestion you can make me.

Sergio.

 * 

 *   "P 4/n m m" appears in the International Tables with

 *   multiple choices of origin.  If the atoms list seems wrong, you

 *   should use a shift vector of:

 * 	-0.25, -0.25, 0

 * 

 * 



 * This feff8 input file was generated by WebAtoms 1.7 (Atoms 3.0beta7)

 * Atoms written by and copyright (c) Bruce Ravel, 1998-2001



 TITLE SnO-tetragonal

 TITLE Shift -0.25,0.25,0.0



 *  Sn M4 edge energy = 493.20 eV

 EDGE      M4

 S02       1.0



 *         pot    xsph  fms   paths genfmt ff2chi

 CONTROL   1      1     1     1     1      1

 PRINT     1      0     0     0     0      0



                          *** ixc=0 means to use Hedin-Lundqvist

 *         ixc  [ Vr  Vi ]

 EXCHANGE  0 

 

 AFOLP 1.0



 CFAVERAGE 2 0 0 

                          *** Radius of small cluster for

                          *** self-consistency calculation

                          *** A sphere including 2 shells is

                          *** a good choice

                          *** l_scf = 0 for a solid, 1 for a molecule

 *         r_scf  [ l_scf   n_scf   ca ]

 SCF       5.9



                          *** Upper limit of XANES calculation.

                          *** This *must* be uncommented to

                          *** make Feff calculate full multiple

                          *** scattering rather than a path expansion

 *         kmax   [ delta_k  delta_e ]

 XANES     7.5



                          *** Radius of cluster for Full Multiple

                          *** Scattering calculation

                          *** l_fms = 0 for a solid, 1 for a molecule

 *         r_fms     l_fms

 FMS        7.0  0



                          *** Energy grid over which to calculate

                          *** DOS functions

 *         emin  emax   eimag

 LDOS      -30   20     0.05



                          *** for EXAFS:  RMAX  10.0 and uncomment

                          *** the EXAFS card

 RPATH     0.1

 *EXAFS     20



 POTENTIALS

 *    ipot   Z  element            l_scmt  l_fms   stoichiometry

        0   50   Sn                 3       3       0.001

        1    8   O                  1       1       2

        2   50   Sn                 3       3       2



 ATOMS                          * this list contains 249 atoms

 *   x          y          z      ipot  tag           distance

    0.00000    0.00000    0.00000  0    Sn            0.00000     0

    1.90100    0.00000   -1.15580  1    O             2.22479     1

   -1.90100    0.00000   -1.15580  1    O             2.22479     2

    0.00000    1.90100   -1.15580  1    O             2.22479     3

    0.00000   -1.90100   -1.15580  1    O             2.22479     4

    1.90100    1.90100   -2.31160  2    Sn            3.54557     5

    1.90100   -1.90100   -2.31160  2    Sn            3.54557     7

   -1.90100   -1.90100   -2.31160  2    Sn            3.54557     8

    1.90100    1.90100    2.52640  2    Sn            3.68922     9

    1.90100   -1.90100    2.52640  2    Sn            3.68922    11

   -1.90100   -1.90100    2.52640  2    Sn            3.68922    12

    3.80200    0.00000    0.00000  2    Sn            3.80200    13

   -3.80200    0.00000    0.00000  2    Sn            3.80200    14

    0.00000   -3.80200    0.00000  2    Sn            3.80200    16

    1.90100    0.00000    3.68220  1    O             4.14396    17

   -1.90100    0.00000    3.68220  1    O             4.14396    18

    0.00000    1.90100    3.68220  1    O             4.14396    19

    0.00000   -1.90100    3.68220  1    O             4.14396    20

    3.80200    1.90100   -1.15580  1    O             4.40510    21

   -3.80200    1.90100   -1.15580  1    O             4.40510    22

    1.90100    3.80200   -1.15580  1    O             4.40510    23

   -1.90100    3.80200   -1.15580  1    O             4.40510    24

    3.80200   -1.90100   -1.15580  1    O             4.40510    25

   -3.80200   -1.90100   -1.15580  1    O             4.40510    26

    1.90100   -3.80200   -1.15580  1    O             4.40510    27

   -1.90100   -3.80200   -1.15580  1    O             4.40510    28

    0.00000    0.00000    4.83800  2    Sn            4.83800    29

    0.00000    0.00000   -4.83800  2    Sn            4.83800    30

    3.80200    3.80200    0.00000  2    Sn            5.37684    31

   -3.80200    3.80200    0.00000  2    Sn            5.37684    32

    3.80200   -3.80200    0.00000  2    Sn            5.37684    33

   -3.80200   -3.80200    0.00000  2    Sn            5.37684    34

    3.80200    1.90100    3.68220  1    O             5.62384    35

   -3.80200    1.90100    3.68220  1    O             5.62384    36

    1.90100    3.80200    3.68220  1    O             5.62384    37

   -1.90100    3.80200    3.68220  1    O             5.62384    38

    3.80200   -1.90100    3.68220  1    O             5.62384    39

   -3.80200   -1.90100    3.68220  1    O             5.62384    40

    1.90100   -3.80200    3.68220  1    O             5.62384    41

   -1.90100   -3.80200    3.68220  1    O             5.62384    42

    5.70300    0.00000   -1.15580  1    O             5.81894    43

   -5.70300    0.00000   -1.15580  1    O             5.81894    44

    0.00000    5.70300   -1.15580  1    O             5.81894    45

    0.00000   -5.70300   -1.15580  1    O             5.81894    46

    3.80200    0.00000    4.83800  2    Sn            6.15317    47

   -3.80200    0.00000    4.83800  2    Sn            6.15317    48

    0.00000    3.80200    4.83800  2    Sn            6.15317    49

    0.00000   -3.80200    4.83800  2    Sn            6.15317    50

    3.80200    0.00000   -4.83800  2    Sn            6.15317    51

   -3.80200    0.00000   -4.83800  2    Sn            6.15317    52

    0.00000    3.80200   -4.83800  2    Sn            6.15317    53

    0.00000   -3.80200   -4.83800  2    Sn            6.15317    54

    1.90100    0.00000   -5.99380  1    O             6.28804    55

   -1.90100    0.00000   -5.99380  1    O             6.28804    56

    0.00000    1.90100   -5.99380  1    O             6.28804    57

    0.00000   -1.90100   -5.99380  1    O             6.28804    58

    5.70300    1.90100   -2.31160  2    Sn            6.44061    59

   -5.70300    1.90100   -2.31160  2    Sn            6.44061    60

    1.90100    5.70300   -2.31160  2    Sn            6.44061    61

   -1.90100    5.70300   -2.31160  2    Sn            6.44061    62

    5.70300   -1.90100   -2.31160  2    Sn            6.44061    63

   -5.70300   -1.90100   -2.31160  2    Sn            6.44061    64

    1.90100   -5.70300   -2.31160  2    Sn            6.44061    65

   -1.90100   -5.70300   -2.31160  2    Sn            6.44061    66

    5.70300    1.90100    2.52640  2    Sn            6.52079    67

   -5.70300    1.90100    2.52640  2    Sn            6.52079    68

    1.90100    5.70300    2.52640  2    Sn            6.52079    69

   -1.90100    5.70300    2.52640  2    Sn            6.52079    70

    5.70300   -1.90100    2.52640  2    Sn            6.52079    71

   -5.70300   -1.90100    2.52640  2    Sn            6.52079    72

    1.90100   -5.70300    2.52640  2    Sn            6.52079    73

   -1.90100   -5.70300    2.52640  2    Sn            6.52079    74

    5.70300    0.00000    3.68220  1    O             6.78843    75

   -5.70300    0.00000    3.68220  1    O             6.78843    76

    0.00000    5.70300    3.68220  1    O             6.78843    77

    0.00000   -5.70300    3.68220  1    O             6.78843    78

    5.70300    3.80200   -1.15580  1    O             6.95092    79

   -5.70300    3.80200   -1.15580  1    O             6.95092    80

    3.80200    5.70300   -1.15580  1    O             6.95092    81

   -3.80200    5.70300   -1.15580  1    O             6.95092    82

    5.70300   -3.80200   -1.15580  1    O             6.95092    83

   -5.70300   -3.80200   -1.15580  1    O             6.95092    84

    3.80200   -5.70300   -1.15580  1    O             6.95092    85

   -3.80200   -5.70300   -1.15580  1    O             6.95092    86

 END