Affiliation: | 1.Ioffe Physico-Technical Institute, St. Petersburg, 194021, Russia ;2.Institut für Physik, Martin-Luther-Universit?t, Halle-Wittenberg, Germany ;3.Van der Waals-Zeeman Institute, University of Amsterdam, NL-1018 XE, Amsterdam, The Netherlands ;4.Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, NL-1018 WS, Amsterdam, The Netherlands ; |