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Current oscillation and chaotic dynamics in superlattices driven by crossed electric and magnetic fields
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10.1063/1.1856431
/content/aip/journal/chaos/15/1/10.1063/1.1856431
http://aip.metastore.ingenta.com/content/aip/journal/chaos/15/1/10.1063/1.1856431
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Calculated electron drift velocity as a function of electric field at different magnetic fields. The inset shows the normalized drift velocity vs electric field with magnetic field , 2, 4, and 6 T, respectively.

Image of FIG. 2.
FIG. 2.

Temporal evolution of current density at different magnetic field: (a) 0, (b) 2, (c) 4, and (d) 6 T. (The dc voltage is set as .)

Image of FIG. 3.
FIG. 3.

Spatiotemporal evolution of electric-field domains shown as a density gray plot for different magnetic fields: (a) and (b) , respectively.

Image of FIG. 4.
FIG. 4.

Poincaré bifurcation diagram of current density vs the ac driving amplitude at , the driving frequency .

Image of FIG. 5.
FIG. 5.

Phase portraits (left) and first return maps (right) for different ac driving amplitudes: (a) 0.0015, (b) 0.0510, (c) 0.0556, (d) 0.0756, and (e) 0.1038.

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/content/aip/journal/chaos/15/1/10.1063/1.1856431
2005-03-28
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Current oscillation and chaotic dynamics in superlattices driven by crossed electric and magnetic fields
http://aip.metastore.ingenta.com/content/aip/journal/chaos/15/1/10.1063/1.1856431
10.1063/1.1856431
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