Nonequilibrium phase transitions in a quasi-two-dimensional superlattice with parabolic miniband

Details Nonequilibrium phase transitions in a quasi-two-dimensional superlattice with parabolic miniband Nonequilibrium phase transitions in a quasi-two-dimensional superlattice with parabolic miniband

2006-02-13

arxiv.org/abs/cond-mat/0602292v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 6 figures

Scientific paper

Distribution function and current density in a one-dimensional superlattice with parabolic miniband are calculated. The current dependence on the temperature coincides with experimental data. Generalization is carried out to quasi-two-dimensional superlattice with paraboloidal miniband. For a sample opened in Y direction with dc current in X direction, a novel nonequilibrium phase transition is found, namely, appearing a spontaneous transverse electric field under temperature rising.

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