Chaotic dynamics of electric-field domains in periodically driven superlattices
Self-sustained time-dependent current oscillations under dc voltage bias have been observed in recent experiments on n-doped semiconductor superlattices with sequential resonant tunneling. The current oscillations are caused by the motion and recycling of the domain wall separating low- and high-ele...
| Autores: | ; ; |
|---|---|
| Tipo de documento: | Artigo |
| Estado: | Published version |
| Data de publicação: | 1996 |
| País: | España |
| Recursos: | Universidad de Barcelona |
| Repositório: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/10912 |
| Acesso em linha: | https://hdl.handle.net/2445/10912 |
| Nível de acesso: | Acesso aberto |
| Palavra-chave: | Dinàmica de fluids Semiconductors Efecte túnel Fluid dynamics Tunneling (Physics) |
| _version_ | 1878736768499449856 |
|---|---|
| author | Bulashenko, Oleg |
| author2 | García, M. J. Bonilla, L. L. (Luis López), 1956- |
| author2_role | author author |
| author_browse | Bonilla, L. L. (Luis López), 1956- Bulashenko, Oleg García, M. J. |
| author_facet | Bulashenko, Oleg García, M. J. Bonilla, L. L. (Luis López), 1956- |
| author_role | author |
| collection | Dipòsit Digital de la UB |
| description | Self-sustained time-dependent current oscillations under dc voltage bias have been observed in recent experiments on n-doped semiconductor superlattices with sequential resonant tunneling. The current oscillations are caused by the motion and recycling of the domain wall separating low- and high-electric-field regions of the superlattice, as the analysis of a discrete drift model shows and experimental evidence supports. Numerical simulation shows that different nonlinear dynamical regimes of the domain wall appear when an external microwave signal is superimposed on the dc bias and its driving frequency and driving amplitude vary. On the frequency-amplitude parameter plane, there are regions of entrainment and quasiperiodicity forming Arnold tongues. Chaos is demonstrated to appear at the boundaries of the tongues and in the regions where they overlap. Coexistence of up to four electric-field domains randomly nucleated in space is detected under ac+dc driving. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_9501d375f7abbc8e9f7498f723b9f0c6 |
| institution | Universidad de Barcelona |
| instname_str | Universidad de Barcelona |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:diposit.ub.edu:2445/10912 |
| publishDate | 1996 |
| publishDateSort | 1996 |
| publisher | The American Physical Society |
| publisherStr | The American Physical Society |
| reponame_str | Dipòsit Digital de la UB |
| spelling | Chaotic dynamics of electric-field domains in periodically driven superlattices Bulashenko, Oleg García, M. J. Bonilla, L. L. (Luis López), 1956- Dinàmica de fluids Semiconductors Efecte túnel Fluid dynamics Tunneling (Physics) Self-sustained time-dependent current oscillations under dc voltage bias have been observed in recent experiments on n-doped semiconductor superlattices with sequential resonant tunneling. The current oscillations are caused by the motion and recycling of the domain wall separating low- and high-electric-field regions of the superlattice, as the analysis of a discrete drift model shows and experimental evidence supports. Numerical simulation shows that different nonlinear dynamical regimes of the domain wall appear when an external microwave signal is superimposed on the dc bias and its driving frequency and driving amplitude vary. On the frequency-amplitude parameter plane, there are regions of entrainment and quasiperiodicity forming Arnold tongues. Chaos is demonstrated to appear at the boundaries of the tongues and in the regions where they overlap. Coexistence of up to four electric-field domains randomly nucleated in space is detected under ac+dc driving. The American Physical Society https://hdl.handle.net/2445/10912 |
| spellingShingle | Chaotic dynamics of electric-field domains in periodically driven superlattices Bulashenko, Oleg Dinàmica de fluids Semiconductors Efecte túnel Fluid dynamics Tunneling (Physics) |
| status_str | publishedVersion |
| title | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| title_full | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| title_fullStr | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| title_full_unstemmed | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| title_short | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| title_sort | Chaotic dynamics of electric-field domains in periodically driven superlattices |
| topic | Dinàmica de fluids Semiconductors Efecte túnel Fluid dynamics Tunneling (Physics) |
| topic_facet | Dinàmica de fluids Semiconductors Efecte túnel Fluid dynamics Tunneling (Physics) |
| url | https://hdl.handle.net/2445/10912 |