Index

Magnetic structures (magCIF) version 0.9.8

_atom_site_moment_special_func.sawtooth_ax

Definition:

   
     _atom_site_moment_special_func.sawtooth_ items are the
     adjustable parameters of a magnetic sawtooth function.    A
     magnetic sawtooth function is only used when working    in the
     crystal-axis coordinate system.  It is defined    along the
     internal space direction as follows:
     mx=2*ax[(x4-c)/w]                      my=2*ay[(x4-c)/w]
     mz=2*az[(x4-c)/w]
    with x4 belonging to the interval [c-(w/2), c+(w/2)], where
     ax,    ay and az are the amplitudes (maximum magnetic moments)
     along each crystallographic axis, w is its width, x4 is the
     internal coordinate and c is the centre of the function in
     internal space.  The use of this function is restricted to
     one-dimensional modulated structures. For more details,     see
     the manual for JANA2000 (Petricek & Dusek, 2000).
    Calculated parameters mx, my and mz must be in Bohr-magneton
     units and can vary in the range (-infinity,infinity).

     Ref: Petricek, V. & Dusek, M. (2000). JANA2000.
     The crystallographic computing system. Institute of Physics, Prague,
     Czech Republic.

     Analogous tags: _atom_site_displace_special_func.sawtooth_*,
     _atom_site_occ_special_func.cresnel_*

Type: Real

Units: Bohr_magnetons

Category:
atom_site_moment_special_func