Magnetic Response of Disordered Ballistic Quantum Dots

Details Magnetic Response of Disordered Ballistic Quantum Dots Magnetic Response of Disordered Ballistic Quantum Dots

1993-12-20

arxiv.org/abs/cond-mat/9312079v2

Physics

Condensed Matter

(revised version), 12 pages of plain LATEX

Scientific paper

10.1103/PhysRevLett.73.154

The weak field average magnetic susceptibility of square shaped mesoscopic conductors is studied within a semiclassical framework. Long semiclassical trajectories are strongly affected by static disorder and differ sharply from those of clean systems. They give rise to a large linear paramagnetic susceptibility which is disorder independent and in agreement with recent experiments. The crossover field to a nonlinear susceptibility is discussed.

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