✦ LIBER ✦
Benefits of using undoped GaAs/AlGaAs heterostructures: A case study of the zero-bias bias anomaly in quantum wires
✍ Scribed by F. Sfigakis; K. Das Gupta; S. Sarkozy; I. Farrer; D.A. Ritchie; M. Pepper; G.A.C. Jones
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 570 KB
- Volume
- 42
- Category
- Article
- ISSN
- 1386-9477
No coin nor oath required. For personal study only.
✦ Synopsis
We use quantum wires fabricated on undoped GaAs/AlGaAs heterostructures in which the average impurity separation is greater than the device size to compare the behaviour of the zero-bias anomaly against predictions from Kondo and spin polarisation models. Cleanliness and reproducibility are significantly improved in our undoped devices when compared to our doped devices.