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the_files [2009/11/26 14:14]
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the_files [2011/02/18 13:13] (current)
Line 8: Line 8:
 options.inp \\ options.inp \\
 scan.inp \\ scan.inp \\
-struc.inp \\ 
 samplek.kpts \\ samplek.kpts \\
 +struc.inp \\
 tip_e_str.inp \\ tip_e_str.inp \\
 tip_g_str.inp \\ tip_g_str.inp \\
Line 22: Line 22:
 This files contains information about Hamiltonian of each atom of the elementary cell of the sample. Their number is the same like the number of atoms in "​*.bas"​ file (which is not necessary here). This files contains information about Hamiltonian of each atom of the elementary cell of the sample. Their number is the same like the number of atoms in "​*.bas"​ file (which is not necessary here).
    
 + \\
 + 
 +=== options.inp ===
 +
 +Inside this file we have the properties settings of the scanning. \\
 +The file contains:
 +
 +  -2.00  2.00  16  0.10   ! E00 (E initial), ERANGE, NEE (n steps), EIMAG (η) 
 +  0                       ! idos(=1 only DOS, =0 STM calculation,​ =2 Both) 
 +  1                       ! TIPOSCAN=(0-scan z,1-scan xy z-const,​2-scan constant current) ​
 +  0                       ! ICUTT=1 only a xy line 
 +  2                       ! MODOSCAN(0=tip orbitals,​1=sample orbitals,​2=both)
 +  0                       ! idenomin(1 with denominators) ​
 +  0                       ! ists (=1 compute the STS curve) ​
 +  0                       ! icoupling (=0 old stuff =1 new with fireball format) ​
 +  1000000 ​                ! energy window for STM (typically 0.4) 
 +
 +Now the initial energy starts from the exact value, and the energy range are the exact voltage.
 +
 +**TIPOSCAN** can take three different values: ​
 +
 +• 0 if you want to do a scan in a xy constant height changing the z. \\
 +• 1 if you want to do the xy scan in constant height. \\
 +• 2 if you want to do the xy scan in constant current. \\
 +
 +**ICUTT** can take two values: \\
 +• 0 if you want to do a complete xy scan. \\
 +• 1 if you only want the line: (XMIN-XMAX,​YMIN-YMAX). \\
 +
 +**MODO_SCAN** can take three different character values. \\
 +• Tip: means that you do the trace with tip orbitals. \\
 +• Sam: means that you do the trace with sample orbitals. \\
 +• Two: means that you do both calculations. \\
 +
 +**IDENOMIN** cat take three different values again: \\
 +• 0: means that you do the calculation without multiple scattering effect involved (faster). ​
 +
 +\\
 +
 +=== scan.inp ===
 +
 +At this file there is information about the scanning. The distances are in Angstroms.
 +
 +  2.500                          ! TIPHEIGHT initial (zmax of the surface atoms+ztip apex) 
 +  -0.866025 , 0.866025 , 18      ! xmin,​xmax,​nscanx ​
 +  0.000000 , 0.000000 , 18       ! ymin,​ymax,​nscany ​
 +  1                              ! maximum number of iterations ​
 +  3 3                            ! ncellx, ncelly (number of cells for writing: x means in the direction of the 1st vector, and y means in the direction of the 2nd)
 +
 +
  \\  \\
  
Line 28: Line 78:
 The file contains the k-points which will be used for calculations (for the sampling of the k-space). The format is as following: The file contains the k-points which will be used for calculations (for the sampling of the k-space). The format is as following:
  
-2 !number of k-points +  ​                                 !number of k-points 
-1.123456 0.500000 0.000000 0.5 !x,y,z coordinate of the k-point and the statistical weight of this k-point ​\\ +  1.123456 0.500000 0.000000 0.5     ​!x,y,z coordinate of the k-point and the statistical weight of this k-point  
-1.123456 -0.500000 0.000000 0.5 \\+  1.123456 -0.500000 0.000000 0.5  
 + 
 //The important thing is, the k-points must be symmetric, it is not possible to use just 1/2 of symmetric points.// //The important thing is, the k-points must be symmetric, it is not possible to use just 1/2 of symmetric points.//
  
-\\+ \\
  
-===  +=== struc.inp, tip_e_str.inp,​ tip_g_str.inp,​ tip_sample_i_j.inp (interaction_i_j.dat) ​===
-=== Level 4 Headline ​===+
  
 +These files are necessary for calculation (and their presence in the directory), but the form of them is noted in the parts above (the [[Sample Hamiltonian]],​ [[The tip structure]],​ [[The hoppings]])
    
  
  
the_files.1259241296.txt.gz · Last modified: 2011/02/18 13:14 (external edit)