title: Enhanced shot noise in tunneling through a stack of coupled quantum dots.
abstract: We have investigated the noise properties of the tunneling current through vertically coupled self-assembled InAs quantum dots. We observe super-Poissonian shot noise at low temperatures. For increased temperature this effect is suppressed. The super-Poissonian noise is explained by capacitive coupling between different stacks of quantum dots.
authors.affiliation: Institut für Festkörperphysik, Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany. Barthold@nano.uni-hannover.de
authors.forename: P
authors.initials: P
authors.lastname: Barthold
authors.forename: F
authors.initials: F
authors.lastname: Hohls
authors.forename: N
authors.initials: N
authors.lastname: Maire
authors.forename: K
authors.initials: K
authors.lastname: Pierz
authors.forename: R J
authors.initials: RJ
authors.lastname: Haug