title: Spin-orbit effects in a GaAs quantum dot in a parallel magnetic field.
abstract: We analyze the effects of spin-orbit coupling on fluctuations of the conductance of a quantum dot fabricated in a GaAs heterostructure. Counterintuitively we argue that spin-orbit effects may become important in the presence of a large parallel magnetic field B( parallel), even if they are negligible for B( parallel) = 0. This should be manifest in the level repulsion of a closed dot, and in reduced conductance fluctuations in dots with a small number of open channels in each lead, for large B( parallel). Our picture is consistent with the experimental observations of Folk et al.
authors: Lyman Laboratory of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
authors: B I
authors: BI
authors: Halperin
authors: A
authors: A
authors: Stern
authors: Y
authors: Y
authors: Oreg
authors: J N
authors: JN
authors: Cremers
authors: J A
authors: JA
authors: Folk
authors: C M
authors: CM
authors: Marcus