Plateau-to-plateau transitions in random-alloy scattering dominated 2DEGs of different densities
| Autor: | Wanli Li, Jian-Sheng Xia, L. N. Pfeiffer, D. C. Tsui, Ken W. West, C. L. Vicente |
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| Rok vydání: | 2006 |
| Předmět: |
Materials science
Condensed matter physics Alloy Heterojunction Electron Quantum Hall effect engineering.material Condensed Matter Physics Power law Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Universality (dynamical systems) engineering Chemical composition Critical exponent |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures. 34:217-219 |
| ISSN: | 1386-9477 |
| DOI: | 10.1016/j.physe.2006.03.125 |
| Popis: | We report a study of the integer quantum Hall plateau-to-plateau transitions in the two-dimensional electron system in Al x Ga 1 - x As – Al 0.32 Ga 0.68 As heterostructures. For two-dimensional electron systems with disorder dominated by short-ranged alloy potential fluctuations, a power-law temperature scaling is established with the critical exponent obtained to be κ = 0.42 ± 0.01 , disregarding the density of the samples. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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