Direct observation of two-dimensional magnetopolarons in a resonant tunnel junction
- 9 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (2) , 235-238
- https://doi.org/10.1103/physrevlett.65.235
Abstract
Inelastic resonant tunnel spectroscopy is used to directly probe the density of states of two-dimensional magnetopolarons in a GaAs quantum well over a wide range of energies and magnetic fields. In agreement with theory, Landau levels are found to be drastically renormalized near degeneracies between the longitudinal-optic-phonon and cyclotron energies.Keywords
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