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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Magnetophonon resonance in high-density high-mobility quantum well systems

Résumé

We have investigated the magnetophonon resonance ~MPR! effect in a series of single GaAs quantum well samples which are symmetrically modulation doped in the adjacent short period AlAs/GaAs superlattices. Two distinct MPR series are observed originating from the G and X electrons interacting with the GaAs and AlAs longitudinal optic (LO) phonons respectively. This confirms unequivocally the presence of X electrons in the AlAs quantum well of the superlattice previously invoked to explain the high electron mobility in these structures @Friedland et al., Phys. Rev. Lett 77, 4616, (1996)
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Dates et versions

hal-00019213 , version 1 (17-02-2006)

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Clément Faugeras, Duncan Kennedy Maude, Gérard Martinez, Laurent B. Rigal, Cyril Proust, et al.. Magnetophonon resonance in high-density high-mobility quantum well systems. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 69, pp.073405. ⟨10.1103/PhysRevB.69.073405⟩. ⟨hal-00019213⟩
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