title: Signatures of spin pairing in chaotic quantum dots.
abstract: Coulomb blockade resonances are measured in a GaAs quantum dot in which both shape deformations and interactions are small. The parametric evolution of the Coulomb blockade peaks shows a pronounced pair correlation in both position and amplitude, which is interpreted as spin pairing. As a consequence, the nearest-neighbor distribution of peak spacings can be well approximated by a modified bimodal Wigner surmise, in which interactions are taken into account beyond the constant interaction model.
authors: Solid State Physics Laboratory, ETH Zürich, Switzerland.
authors: S
authors: S
authors: Lüscher
authors: T
authors: T
authors: Heinzel
authors: K
authors: K
authors: Ensslin
authors: W
authors: W
authors: Wegscheider
authors: M
authors: M
authors: Bichler