Título:
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Solitary-wave conduction in p-type Ge under time dependent voltage bias
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Autor/a:
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Bergmann, Michael J.; Teistworth, Stephen W.; Bonilla, Luis L.; Rodríguez Cantalapiedra, Inma
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física Aplicada; Universitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri |
Abstract:
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We present the results of numerical simulations of a drift-diffusion model—including electric-field-dependent generation-recombination processes—for closely compensated p-type Ge at low temperature and under dc+ac and dc+noise voltage biases, with an Ohmic boundary condition. We observe frequency locking and quasiperiodicity under dc+ac bias, but do not find chaotic behavior for a uniform impurity profile. Noise-induced intermittent switching near the onset of solitary-wave conduction is compared to experimentally observed intermittency, type-III intermittency, and on-off intermittency. For a linearly increasing acceptor concentration, we find that the size of the solitary waves diminishes as they advance across the sample |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Equacions diferencials i integrals -Dynamics -Solitary wave -Numerical simulationa -Dinàmica molecular |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
Editor:
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American Physical Society
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