title: Multiple transitions of the spin configuration in quantum dots.
abstract: Single electron tunneling is studied in a many electron quantum dot in high magnetic fields. For such a system multiple transitions of the spin configuration are theoretically predicted. With a combination of spin blockade and Kondo effect we are able to detect five regions with different spin configurations. Transitions are induced with changing electron numbers.
authors.affiliation: Institut für Festkörperphysik, Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany. rogge@nano.uni-hannover.de
authors.forename: M C
authors.initials: MC
authors.lastname: Rogge
authors.forename: C
authors.initials: C
authors.lastname: Fühner
authors.forename: R J
authors.initials: RJ
authors.lastname: Haug