Symmetry-breaking and chaos in electron transport in semiconductor superlattices

Details Symmetry-breaking and chaos in electron transport in semiconductor superlattices Symmetry-breaking and chaos in electron transport in semiconductor superlattices

2001-04-09

arxiv.org/abs/cond-mat/0104144v1

Physica D, 113 (1998) 129-133

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 3 figures, RevTEX, EPSF

Scientific paper

10.1016/S0167-2789(97)00260-1

We study the motion of electrons in a single miniband of a semiconductor superlattice driven by THz electric field polarized along the growth direction. We work in the semiclassical balance-equation model, including different elastic and inelastic scattering rates, and incorporating the self-consistent electric field generated by electron motion. We explore regions of complex dynamics, which can include chaotic behaviour and symmetry-breaking. We estimate the magnitudes of dc current and dc voltage that spontaneously appear in regions of broken-symmetry for parameters characteristic of modern semiconductor superlattices. This work complements PRL 80(1998)2669 [ cond-mat/9709026 ].

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