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Control of material parameters and metal–insulator transition in (Ga,Mn)As

✍ Scribed by T Hayashi; Y Hashimoto; S Yoshida; S Katsumoto; Y Iye


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
117 KB
Volume
10
Category
Article
ISSN
1386-9477

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Magnetic field dependence of the metal–i
✍ R.D Jäggi; M von Waldkirch; T Heinzel; E Ribeiro; K Ensslin; G Medeiros-Ribeiro; 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 128 KB

A metal-insulator transition at zero magnetic ÿeld is observed in Ga [Al]As-heterostructures where a high density of self-assembled InAs-quantum dots is located in the region of the two-dimensional electron gas (2DEG). This transition occurs only in samples with high dot densities. In contrast to ot