Both Example 12 and Example 14 use several scripts and auxillary programs to obtain results. These programs are protected with the same username and password used to obtain the static source code. See How to Obtain the Source Code for details. The files are stored in this directory, or you can download the file SCRIPTS.tgz to obtain the entire package as a gzipped tar file. Follow the instructions in the INSTALLATION file to get these programs working properly.

The file skingen is a Perl script which automates the construction of the SKIN input file. Its use is described in Example 14. Note that after installation, this script (but not the auxillary files it calls) may be moved to a directory in your path.

The file plotdos is a Perl script which automates the calculation and plotting of the electronic density of states (DOS) and optionally the band structure of several cubic lattices. Its use is described in Example 12. Note that after installation, this script (but not the auxillary files and programs it calls) may be moved to a directory in your path.

The following Fortran sources are used in conjunction with plotdos:

• bandplot.f is a small Fortran 77 program which takes the output from a QLMT file and converts it into a form which can be used by gnuplot to plot electronic band structures. For more details, see Example 7.
  
  This program is identical to the bandplot program in the useful program directory, except that it reads unformatted Fortran files rather than ASCII QLMT files.
  
  
• qdos.f is a ``quick and dirty'' program for converting the eigenvalue information in a QLMT into an electronic density of states. (See Example 9.) The theory behind this code is outlined in the comments and is based on the paper of M.J. Gillan [J. Phys. Condensed Matter 1 689-711 (1989)].
  
  This program is identical to the qdos program in the useful program directory, except that it reads unformatted Fortran files rather than ASCII QLMT files.
  
  
• qfermi.f is a program which reads an unformatted Fortran QLMT file and determines the Fermi level and total band structure energy for a given Fermi temperature.
  
  
  
  
• dosplot.f is a simple program which reads in the data from an unformatted Fortran QLMT file and puts it into a form understandable by the program
  
  
• tetrahedron.f, determines the electronic Density of States (DOS) by the tetrahedron method, provided that eigenvalue information is generated for the proper k-points (see the SKIN file generated by plotdos) and placed in the proper format (by dosplot).
  
  

There are also several other files and subdirectories included in this distribution. They should remain in the installation directory, with world read access.

Note that all of these programs are subject to the standard disclaimer.

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