example of input file mcdisp.mf

this file contains temperature $T$, the external field $H$ and the exchange fields on the different sites:

# Parameter file  mcdisp.mf - read by mcdisp version 3.0
#<!--mcdisp.mcdisp.mf>
#*********************************************************************
# mcdisp - program to calculate the dispersion of magnetic excitations
# reference: M. Rotter et al. J. Appl. Phys. A74 (2002) 5751
#*********************************************************************
#'T'             temperature T
#'Ha' 'Hb' 'Hc'  magnetic field
#'n'             number of atoms in magnetic unit cell
#'nofatoms'      number of atoms in primitive crystal unit cell
#'nofcomponents' dimension of moment vector of a magnetic atoms
#! x=1.5 y=0 T=1.5 |H|=0 Ha=0 Hb=0 Hc=0 n=20 spins nofatoms=2 in primitive basis nofcomponents=3 - configuration
 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
 0.2708 0.3354 -0.3354 -0.2708 0.2947 -0.2708 -0.3354 0.3354 0.2708 -0.2947
 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000
 0.2708 0.3354 -0.3354 -0.2708 0.2947 -0.2708 -0.3354 0.3354 0.2708 -0.2947
 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000

The file mcdisp.mf can be easily set up by using the program setup_mcdisp_mf or alternatively by the program spins described in section 17.3. Note, in case of non-orthogonal axes the convention for applied field $Ha, Hb, Hc$ is $Hb\vert\vert\vec b$, $Hc\vert\vert(\vec a \times \vec b)$ and $Ha$ perpendicular to $Hb$ and $Hc$.