The Advanced Photon Source
a U.S. Department of Energy Office of Science User Facility

Listing Magnetic Spin Directions GSAS

To list the contents of a magnetic unit cell, the following input can be supplied to program GEOMETRY in the GSAS suite. This program is run in EXPGUI by selecting the appropriate menu item from the Results menu item. A sample run of GEOMETRY is shown below. User-typed input is emphasized by display in this font: Input. The amount of output generated by this program can be large, so that it may be impossible to see all generated information on the terminal window, even with scrolling. However, all of the generated information is also copied to the GSAS .LST file, where it can be reviewed with a text editor or EXPGUI utility LSTVIEW. Note that results from versions of this program prior to mid-August of 2005 should not be trusted.

                   |-----------------------------------------|
                   |     Program GEOMETRY Version MacOSX     |
                   |        Compute molecular geometry       |
                   |       Get atom group orientations       |
                   | Distributed on Mon Aug 22 15:40:54 2005 |
                   |-----------------------------------------|

        |---------------------------------------------------------------|
        |            Allen C. Larson and Robert B. Von Dreele           |
        |      Manuel Lujan, Jr. Neutron Scattering Center, MS-H805     |
        |      Los Alamos National Laboratory, Los Alamos, NM  87545    |
        |                                                               |
        | Copyright, 2000, The Regents of the University of California. |
        |---------------------------------------------------------------|



  Cell constants
   3.92648   3.90846  11.79065  90.00000  90.00000  90.00000

 BI(I,1)   BI(I,2)    BI(I,3)     BB(I,1)    BB(1,2)   BB(1,3)
  0.254681  0.000000  0.000000  3.926476  0.000000 -0.000001
  0.000000  0.255855  0.000000  0.000000  3.908464  0.000000
  0.000000  0.000000  0.084813  0.000000  0.000000 11.790646

 Space group P m m m             
 The lattice is centric   primitive orthorhombic  Laue symmetry mmm   
  Multiplicity of a general site is   8
  The symmetry of the point 0,0,0 contains 1bar

 The equivalent positions are:

 ( 1)     X      Y      Z  ( 2)    -X      Y      Z 
 ( 3)     X     -Y      Z  ( 4)    -X     -Y      Z 
 
  Print input atoms? (/N) >N  
 Enter Geometry option (,A,B,H,L,M,N,P,R,S,X) >
 Main control Menu for GEOMETRY
   A - Compute a dihedral angle
   B - Compute a bond angle
   H - Compute hydrogen atom positions
   L - Ligand rotation angles
   M - List spins for all magnetic atoms in unit cell
   N - Select new phase
   P - Fit a polyhedron to the atom positions
   R - define a rigid body
   S - Compute standard uncertainty on linear combinations of parameters
   X - terminate run >M
  Enter phase number >2
 New phase selected

 All of the following data refer to the current space group symbol

  Print input atoms? (/N) >N  
Locations and spin directions for all magnetic atoms in the unit cell

Spin vectors are displayed with three different sets of coordinates.
Fractional coordinates have x || a, y || b & z || c with units
    of Bohr Magnetron/Angstrom 
Input orthogonal coordinates are in Bohr Magnetrons with x || a, y || b*
    and z in the a-c plane (z || a x b*)
z||c* orthogonal coordinates are in Bohr Magnetrons with x || a, y in a-b
    plane (y || a x c*) and z || c* -- a commonly used orthonormal setting

 atom                        atom position           spin direction
  #   name    elem         x       y       z        x       y       z   color

   1  Fe1a    FE+3      0.0000  0.0000  0.0000                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   1  Fe1a    FE+3      0.0000  0.5000  0.5000                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   1  Fe1a    FE+3      0.5000  0.0000  0.5000                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   1  Fe1a    FE+3      0.5000  0.5000  0.0000                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   2  Fe1b    FE+3      0.0000  0.0000  0.5000                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   2  Fe1b    FE+3      0.0000  0.5000  0.0000                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   2  Fe1b    FE+3      0.5000  0.0000  0.0000                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   2  Fe1b    FE+3      0.5000  0.5000  0.5000                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.0000  0.0000  0.1700                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.0000  0.0000  0.8300                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.0000  0.5000  0.6700                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.0000  0.5000  0.3300                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.5000  0.0000  0.6700                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.5000  0.0000  0.3300                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.5000  0.5000  0.1700                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   3  Fe2a    FE+3      0.5000  0.5000  0.8300                          Black
      input orthogonal                          -3.4788  0.0000  0.0000
            fractional                          -0.4430  0.0000  0.0000
      z||c* orthogonal                          -3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.0000  0.0000  0.3300                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.0000  0.0000  0.6700                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.0000  0.5000  0.8300                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.0000  0.5000  0.1700                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.5000  0.0000  0.8300                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.5000  0.0000  0.1700                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.5000  0.5000  0.3300                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000

   4  Fe2b    FE+3      0.5000  0.5000  0.6700                          Black
      input orthogonal                           3.4788  0.0000  0.0000
            fractional                           0.4430  0.0000  0.0000
      z||c* orthogonal                           3.4788  0.0000  0.0000
 Enter Geometry option (,A,B,H,L,M,N,P,R,S,X) >X
STOP GEOMETRY terminated statement executed