Spin orbit effects in a GaAs quantum dot in a parallel magnetic field

Details Spin orbit effects in a GaAs quantum dot in a parallel magnetic field Spin orbit effects in a GaAs quantum dot in a parallel magnetic field

2000-10-04

arxiv.org/abs/cond-mat/0010064v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages

Scientific paper

10.1103/PhysRevLett.86.2106

We analyze the effects of spin-orbit coupling on fluctuations of the conductance of a quantum dot fabricated in a GaAs heterostructure. We argue that spin-orbit effects may become important in the presence of a large parallel magnetic field B_{||}, even if they are negligble for B_{||}=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_{||}. Our picture is consistent with the experimental observations of Folk et al.

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