Affiliation: | 1.Novosibirsk State University, 630090, Novosibirsk, Russia ;2.Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia ;3.Universitè de Lorraine, Institut Jean Lamour UMR CNRS 7198, B.P. 70239, 54506, Vandœuvre-lés-Nancy Cedex, France ; |