Plaut, AS and Pinczuk, A and Dennis, BS and Hirjibehedin, CF and Pfeiffer, LN and West, KW (2004) Linear collapse of the depolarization shift in very dilute two-dimensional hole gases. APPL PHYS LETT , 85 (23) 5625 - 5627. 10.1063/1.1833562.
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Abstract
Very dilute two-dimensional hole systems were probed by resonant inelastic light scattering. This extremely high mobility system occurs in AlxGa1-xAs/GaAs quantum wells designed specifically for their light insensitivity. We find that the depolarization shift in intersubband transitions decreases linearly for hole densities below p=6.6x10(10) cm(-2), dropping to zero below p=1x10(10) cm(-2). (C) 2004 American Institute of Physics.
| Type: | Article |
|---|---|
| Title: | Linear collapse of the depolarization shift in very dilute two-dimensional hole gases |
| DOI: | 10.1063/1.1833562 |
| Keywords: | QUANTUM-WELL STRUCTURES, COLLECTIVE EXCITATIONS, CYCLOTRON-RESONANCE, PARTICLE, SYSTEM |
| UCL classification: | UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology |
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