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the_files [2009/11/26 14:35] vroz |
the_files [2011/02/18 13:13] (current) |
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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 \\ | ||
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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). | ||
- | \\ | ||
- | |||
- | === samplek.kpts === | ||
- | |||
- | 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 \\ | ||
- | 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 \\ | ||
- | //The important thing is, the k-points must be symmetric, it is not possible to use just 1/2 of symmetric points.// | ||
- | |||
- | \\ | ||
- | |||
- | === 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) | ||
- | |||
\\ | \\ | ||
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The file contains: | The file contains: | ||
- | -2.0000 2.00 16 0.10 ! E00 (E initial), ERANGE, NEE (n steps), EIMAG (η) \\ | + | -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) \\ | + | 0 ! idos(=1 only DOS, =0 STM calculation, =2 Both) |
- | 1 ! TIPOSCAN=(0-scan z,1-scan xy z-const,2-scan constant current) \\ | + | 1 ! TIPOSCAN=(0-scan z,1-scan xy z-const,2-scan constant current) |
- | 0 ! ICUTT=1 only a xy line \\ | + | 0 ! ICUTT=1 only a xy line |
- | 2 ! MODOSCAN(0=tip orbitals,1=sample orbitals,2=both) \\ | + | 2 ! MODOSCAN(0=tip orbitals,1=sample orbitals,2=both) |
- | 0 ! idenomin(1 with denominators) \\ | + | 0 ! idenomin(1 with denominators) |
- | 0 ! ists (=1 compute the STS curve) \\ | + | 0 ! ists (=1 compute the STS curve) |
- | 0 ! icoupling (=0 old stuff =1 new with fireball format) \\ | + | 0 ! icoupling (=0 old stuff =1 new with fireball format) |
- | 1000000 ! energy window for STM (typically 0.4) \\ | + | 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. | Now the initial energy starts from the exact value, and the energy range are the exact voltage. | ||
- | **TIPOSCAN** can take three different values: \\ | + | **TIPOSCAN** can take three different values: |
• 0 if you want to do a scan in a xy constant height changing the z. \\ | • 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. \\ | • 1 if you want to do the xy scan in constant height. \\ | ||
Line 80: | Line 58: | ||
**IDENOMIN** cat take three different values again: \\ | **IDENOMIN** cat take three different values again: \\ | ||
• 0: means that you do the calculation without multiple scattering effect involved (faster). | • 0: means that you do the calculation without multiple scattering effect involved (faster). | ||
- | === Level 4 Headline === | ||
+ | \\ | ||
+ | |||
+ | === 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) | ||
+ | |||
+ | |||
+ | \\ | ||
+ | |||
+ | === samplek.kpts === | ||
+ | |||
+ | 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 | ||
+ | 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 | ||
+ | |||
+ | |||
+ | //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) === | ||
+ | |||
+ | 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]]) | ||