Characterization of SET electrometer coupled to the quantum dot in GaAs/AlGaAs 2DEG
β Scribed by K. Ishibashi; T. Ida; H. Kotani; Y. Ochiai; T. Sugano; Y. Aoyagi
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 264 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0167-9317
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β¦ Synopsis
The SET electrometer has been fabricated in GaAs/AlGaAs 2 dimensional electron gas (2DEG), and has been coupled to the quantum dot to measure the change in electron number in it. When the coupling strength was enough large, the signal to indicate the electron number change was confirmed by simultaneously measuring two currents in the SET and the dot.
π SIMILAR VOLUMES
We used a time-resolved charge readout technique to study the spin-related transition and spin relaxation for a quantum dot near the regime of filling factor n ΒΌ 2. The measured tunneling time was seven times faster for a spin triplet than for a spin singlet. We used this difference to identify the