Abstract
Exchange enhancements of the spin-polarized 2D electron gas are determined for the first time by inelastic light scattering from spin-flip inter-Landau-level and intersubband excitations. In the magnetic quantum limit =1 the splitting between long wavelength magnetoplasmons and spin-flip inter-Landau-level excitations is a direct spectroscopic measurement of the enhanced exchange energy. At =1 the enhancements in GaAs quantum wells are in agreement with the Hartree-Fock approximation.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3623-3626 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 68 |
| Issue number | 24 |
| DOIs | |
| State | Published - 1992 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
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