 |
 |
 |
|
|
|
| HAL : hal-00378539, version 1 |
| arXiv : 0901.2712 |
| DOI : 10.1103/PhysRevB.80.121304 |
| Fiche détaillée |  Récupérer au format |
|
|
| Physical Review B 80, 12 (2009) 121304(R) |
|
|
|
|
| Photovoltaic Effect in a Gated Two-dimensional Electron Gas in Magnetic Field |
|
|
| Maria Lifshits1Michel Dyakonov1 |
|
|
| (16/09/2009) |
|
|
|
| The photovoltaic effect induced by terahertz radiation in a gatedtwo-dimensional electron gas in magnetic field is considered theoretically. Itis assumed that the incoming radiation creates an ac voltage between the sourceand gate and that the gate length is long compared to the damping length ofplasma waves. In the presence of pronounced Shubnikov-de Haas oscillations, animportant source of non-linearity is the oscillating dependence of the mobilityon the ac gate voltage. This results in a photoresponse oscillating as afunction of magnetic field, which is enhanced in the vicinity of the cyclotronresonance, in accordance with recent experiments. Another, smooth component ofthe photovoltage, unrelated to SdH oscillations, has a maximum at cyclotronresonance. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | LPTA - Laboratoire de Physique Théorique et Astroparticules |
|
|
|
|
|
|
|
|
|
| Domaine | : | Physique/Matière Condensée/Systèmes mésoscopiques et effet Hall quantique Physique/Matière Condensée/Autre |
|
|
| cyclotron resonance – photovoltaic effects – Shubnikov-de Haas effect – terahertz waves – two-dimensional electron gas |
|
|
|
| Lien vers le texte intégral : |
|
| http://fr.arXiv.org/abs/0901.2712 |
| hal-00378539, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00378539 | |
| oai:hal.archives-ouvertes.fr:hal-00378539 | |
| Contributeur : Logiciel Aigle | |
| Déposé pour le compte de : | |
| Soumis le : Vendredi 24 Avril 2009, 14:04:51 | |
| Dernière modification le : Mardi 24 Novembre 2009, 13:40:51 | |
