Orbital Magnetic Ordering in Disordered Mesoscopic Systems

Details Orbital Magnetic Ordering in Disordered Mesoscopic Systems Orbital Magnetic Ordering in Disordered Mesoscopic Systems

1998-05-13

arxiv.org/abs/cond-mat/9805157v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

16 pages, LaTeX, 8 figures, in print in J. Magn. Magn. Mat

Scientific paper

10.1016/S0304-8853(98)00223-6

We present some model calculations of persistent currents in disordered one- and two-dimensional mesoscopic systems. We use the tight-binding model and calculate numerically the currents in small systems for several values of disorder. Next we fit appropriate analytical formulae, and using them we find self- -sustaining currents and critical fields in larger, more realistic systems with different shapes of the Fermi surfaces.

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