Two-dimensional collective electron magnetotransport, oscillations, and chaos in a semiconductor superlattice

被引:3
|
作者
Bonilla, L. L. [1 ]
Carretero, M.
Segura, A.
机构
[1] Univ Carlos III Madrid, Gregorio Millan Inst, Fluid Dynam Nanosci & Ind Math, Leganes, Spain
关键词
CURRENT FLOW; WAVES;
D O I
10.1103/PhysRevE.96.062215
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
When quantized, traces of classically chaotic single-particle systems include eigenvalue statistics and scars in eigenfuntions. Since 2001, many theoretical and experimental works have argued that classically chaotic single-electron dynamics influences and controls collective electron transport. For transport in semiconductor superlattices under tilted magnetic and electric fields, these theories rely on a reduction to a one-dimensional self-consistent drift model. A two-dimensional theory based on self-consistent Boltzmann transport does not support that single-electron chaos influences collective transport. This theory agrees with existing experimental evidence of current self-oscillations, predicts spontaneous collective chaos via a period doubling scenario, and could be tested unambiguously by measuring the electric potential inside the superlattice under a tilted magnetic field.
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页数:10
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