Program hkl, hkl2d and mcdiff - graphical
display of magnetic diffraction intensity
the following example (fig. 20) shows the temperature dependence of the neutron intensity
on the different harmonics of NdCu.
- hkl [options] [file]
- produces neutron intensity graphic
and postscript-file hkl.ps. perl and
pgplot must be installed in order to use this program.
Options are -n (plot reflex number n)
-h (help). If no file is given the program uses file mcphas.hkl.
- hkl2d [options] [file]
- same as hkl but two-dimensional colour
plot of intensity.
NdCu: calculated temperature dependence of magnetic amplitudes of the
main propagation vector and higher harmonics (at zero magnetic field).
In addition to the display of the temperature dependence there is the
possibility to generate a powder diffraction pattern by the
program mcdiff . The
recommended procedure is to use
- setup_mcdiff_in T Ha Hb Hc:
- to generate a file mcdiff.in which
contains the spin configuration, lattice etc. information at a
desired temperature. Edit this output file and at the beginning
of the file insert some additional information as described in section 8.
Continue by using the modules
- as described in detail in section 8 to
generate a list of reflections with the corresponding neutron powder
intensities (file mcdiff.out). In order to create a powder pattern
a further step is required using the program
- convolute... mcdiff.out [+options] resolution file:
- is also described in section 18. This program convolutes the
reflection list with a specific resolution function.