Affiliation: | 1.Institute of Semiconductor Physics, Siberian Branch,Russian Academy of Sciences,Novosibirsk,Russia;2.Novosibirsk State University,Novosibirsk,Russia;3.Grenoble High Magnetic Field Laboratory,Max-Planck-Institut für Festk?rperforschung and Centre National de la Recherche Scientique,Grenoble, Cedex 9,France;4.INSA,Toulouse Cedex 4,France;5.Institut Universitaire de France,Paris,France |