Optically Detected Magnetophonon Resonance in GaAs-GaAlAs Heterojunctions

Autor:	J. T. Devreese, Robin J. Nicholas, M. Watts, C.J.G.M. Langerak, C. T. Foxon, X.-G. Wu, D. J. Barnes, J.J. Harris, François M. Peeters, John Singleton
Rok vydání:	1992
Předmět:	Laser linewidth Materials science Condensed matter physics Absorption spectroscopy Electrical resistivity and conductivity Cyclotron resonance Resonance Heterojunction Landau quantization Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Magnetic field
Zdroj:	Springer Series in Solid-State Sciences ISBN: 9783642844102 Proceedings of High Magnetic Fields in Semiconductor Physics III / Landwehr, G. [edit.]
DOI:	10.1007/978-3-642-84408-9_94
Popis:	We present an experimental observation of the magnetophonon effect in the frequency dependent conductivity of a GaAl-GaAlAs heterojunction. The cyclotron resonance position and linewidth are found to oscillate as a function of magnetic field and show resonances for ωL.O. ≈ NωC. The resonances grow rapidly with increasing temperature. Good agreement is found with a one-electron theory of the cyclotron resonance absorption spectrum, which demonstrates that the observed oscillations have the same origin as the MPR oscillations in the resistivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8000fd7a85a53644374e0bd3f5bc7d66 https://doi.org/10.1007/978-3-642-84408-9_94 Zobrazit plný text záznamu