Photoluminescence experiments were performed on quantum Hall systems of diluted magnetic semiconductors, CdMnTe=CdMgTe QW, at high magnetic ÿelds up to 25 T. Luminescence spectra were polarized owing to the giant Zeeman splitting based on the s(p) -d exchange interaction and oscillatory behavior was
Broken symmetries in the reconstruction of ν=1 quantum Hall edges
✍ Scribed by S.M Reimann; M Koskinen; S Viefers; M Manninen; B Mottelson
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 112 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1386-9477
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We argue that it is possible, in principle, to create an adiabatic transition through a narrow neck, or point contact, between two di erent quantized Hall states that have the same number of edge modes, such as = 1 and 1 3 . We apply both the composite fermion and the Luttinger liquid formalism to a
We measure equilibrium tunneling of electrons from a 3D electrode into a high-mobility 2D electron system. For most 2D Landau level-ÿlling factors, we ÿnd that tunneling can be characterized by a single, well-deÿned tunneling rate. However, for spin-polarized quantum Hall states ( = 1; 3 and 1 3 ) t
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