Collective cyclotron modes in high-mobility two-dimensional hole systems in GaAs-(Ga,Al)As heterojunctions .1. Experiments at low magnetic fields and theory
The cyclotron resonance of very high-mobility two-dimensional holes in GaAs-(Ga, Al)As heterojunctions grown on (111), (311) and (100) substrates has been studied over the frequency range 30 to 200 GHz. Although the presence of two hole spin subbands in the samples suggests that two cyclotron resona...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1997
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