Institution: | a Centre de Recherches sur les Très Basses Tempratures, CNRS, B.P. 166, 38042 Grenoble, France b Institut Laue–Langevin, B.P. 156, 38042 Grenoble, France c MPI für Metallforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany d Institute of Radio-Engineering and Electronics, 103907 Moscow, Russia e Laboratoire de Cristallographie, CNRS, B.P. 166, 38042 Grenoble, France f LPTMS, Bt. 100, 91406 Orsay, France g ESRF, B.P. 220, 38043 Grenoble, France |