We review recent results of microwave spectroscopy on two-dimensional systems of holes in high-quality GaAs/AlxGa1-xAs heterostructures. The high magnetic field (B) insulating phase of these systems exhibits a striking microwave resonance, that is interpreted as a pinning mode of a Wigner crystal. The dependences of this resonance on B, temperature, carrier density, and dc in-plane electric field are summarized.
|Original language||English (US)|
|Journal||Journal De Physique. IV : JP|
|State||Published - Dec 1 1999|
|Event||Proceedings of the 1999 International Workshop on ELectronic Crystals (ECRYS-99) - La Colle-sur-Loup, France|
Duration: May 31 1999 → Jun 5 1999
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)