Authors: Bartsch, Gregor
Title: Optically detected cyclotron resonance in a single GaAs/AlGaAs heterojunction
Language (ISO): en
Abstract: Optically detected far-infrared cyclotron resonance (FIR-ODCR) in GaAs/AlGaAs HJs is interpreted in the frame of an exciton-dissociation mechanism. It is possible to explain the ODR mechanism by an exciton drag, mediated by ballistically propagating phonons. Furthermore, very narrow resonances are presented and realistic electron mobility values can be calculated. The exceptionally narrow ODCRs allow to measure conduction-band nonparabolicity effects and resolve satellite resonances, close to the main cyclotron resonance line.
URI: http://hdl.handle.net/2003/29115
http://dx.doi.org/10.17877/DE290R-7325
Issue Date: 2011-09-28
Appears in Collections:Experimentelle Physik II

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