An investigation of tunable spin–orbit interactions in front-gated In0.75Ga0.25As/In0.75Al0.25As heterojunctions
✍ Scribed by Yuuki Sato; Shin-ichiro Gozu; Tomohiro Kita; Syoji Yamada
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 111 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1386-9477
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We report magnetotransport experiments in high carrier density GaAs/GaoslnozAs/Gao.75Alo25As heterostructures in magnetic fields up to 50 T. At the lowest electron densities the quantized Hall effect is observed, with one subband occupied. As the density is increased, features indicating the populat
We have fabricated and characterized Hall probes on an In 0.75 Al 0.25 As/In 0.75 Ga 0.25 As two-dimensional electron gas with lateral sizes down to 100 nm. We studied the dependence of the low temperature (4 K) magnetic field sensitivity on the probe size, showing that the best flux sensitivity is