Quantum Ratchet Effects Induced by Terahertz Radiation in GaN-Based Two-Dimensional Structures
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Weber, W, Golub, L E, Danilov, S N, Karch, J, Reitmaier, C, Wittmann, B, Bel'kov, W, Ivchenko, E L, Kvon, Z D, Vinh, N Q, van der Meer, A F, Murdin, B and Ganichev, S D (2008) Quantum Ratchet Effects Induced by Terahertz Radiation in GaN-Based Two-Dimensional Structures Physical Review B, 77 (24). ISSN 1098-0121
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Abstract
Photogalvanic effects are observed and investigated in wurtzite (0001)-oriented GaN/AlGaN low-dimensional structures excited by terahertz radiation. The structures are shown to represent linear quantum ratchets. Experimental and theoretical analysis exhibits that the observed photocurrents are related to the lack of an inversion center in the GaN-based heterojunctions.
| Item Type: | Article |
|---|---|
| Additional Information: | Published in <i>Physical Review B,</i> Vol. 77, Iss. 24. Copyright 2008 American Physical Society. Click <a href=http://prb.aps.org/>here</a> to access the journal's website. |
| Divisions: | Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics Faculty of Engineering and Physical Sciences > Physics |
| ID Code: | 346 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:08 |
| Last Modified: | 25 Apr 2013 12:43 |
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