Y. Krockenberger (1,2), K. Mogare (2), M. Reehuis (2,3), M. Tovar (3),
  M. Jansen (2), G. Vaitheeswaran (2,4), V. Kanchana (2,4), F. Bultmark (5), A.
  Delin (4), F. Wilhelm (6), A. Rogalev (6), A. Winkler (1), and L. Alff (1)
  ((1) Institute of Materials Science, TU Darmstadt, (2) MPI for Solid State
  Research, Stuttgart, (3) HMI Berlin, (4) KTH Stockholm, (5) University of
  Uppsala, (6) ESRF Grenoble)