Electron-Electron Interaction in Disordered Mesoscopic Systems: Weak Localization and Mesoscopic Fluctuations of Polarizability and Capacitance

Details Electron-Electron Interaction in Disordered Mesoscopic Systems: Weak Localization and Mesoscopic Fluctuations of Polarizability and Capacitance Electron-Electron Interaction in Disordered Mesoscopic Systems: Weak Localization and Mesoscopic Fluctuations of Polarizability and Capacitance

1997-05-25

arxiv.org/abs/cond-mat/9705250v2

Phys. Rev. B 57, 4566 (1998)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages Latex, 3 .eps figures included. To appear in Phys. Rev. B. Minor corrections, in particular in formulae; new referenc

Scientific paper

10.1103/PhysRevB.57.4566

The weak localization correction and the mesoscopic fluctuations of the polarizability and the capacitance of a small disordered sample are studied systematically in 2D and 3D geometries. While the grand canonical ensemble calculation gives the positive magnetopolarizability, in the canonical ensemble (appropriate for isolated samples) the sign of the effect is reversed. The magnitude of mesoscopic fluctuations for a single sample exceeds considerably the value of the weak localization correction.

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