Effects of spin and exchange interaction on the Coulomb-blockade peak statistics in quantum dots

Details Effects of spin and exchange interaction on the Coulomb-blockade peak statistics in quantum dots Effects of spin and exchange interaction on the Coulomb-blockade peak statistics in quantum dots

2002-12-05

arxiv.org/abs/cond-mat/0212126v2

Phys. Rev. Lett. 91 (2003) 056801

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures, revtex4, typos corrected

Scientific paper

10.1103/PhysRevLett.91.056801

We derive a closed expression for the linear conductance through a quantum dot in the Coulomb-blockade regime in the presence of a constant exchange interaction. With this expression we calculate the temperature dependence of the conductance peak-height and peak-spacing statistics. Using a realistic value of the exchange interaction, we find significantly better agreement with experimental data as compared with the statistics obtained in the absence of an exchange interaction.

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