JUNKER, P and KOPS, U and MERKT, U and DARNHOFER, T and ROSSLER, U (1994) BAND NONPARABOLICITY AND 3-DIMENSIONAL ASPECTS IN QUANTUM DOTS ON INSB. PHYSICAL REVIEW B, 49 (7). pp. 4794-4799. ISSN 1098-0121,
Full text not available from this repository.Abstract
Quantum dots with high lateral quantization energies are created on InSb by means of a perforated Schottky gate. With a gate voltage the lateral quantization energies can be tuned and approach values up to homega0BAR almost-equal-to 25 meV, which is comparable to the subband separations connected with the vertical motion in the corresponding quasi-two-dimensional electron system. By far-infrared spectroscopy, we observe the two fundamental modes omega+/- in a magnetic field and verify the predicted polarization selection rules. The measured transition energies are described by employing a realistic three-dimensional model potential and taking into account the conduction band nonparabolicity of InSb and the resulting coupling of the vertical subbands.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETIC-FIELD; SPECTROSCOPY; STATES; GAAS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:40 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53457 |
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