The effect of a carrier density gradient on magnetotransport data measured in Hall bar geometry
| Autor: | L. A. Ponomarenko, V. A. Kulbachinskii, Harald Künzel, D.T.N. de Lang, A.M.M. Pruisken, A. de Visser, G. B. Galiev |
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| Přispěvatelé: | Publica, Hard Condensed Matter (WZI, IoP, FNWI), Quantum Condensed Matter Theory (ITFA, IoP, FNWI) |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Physics
Condensed Matter - Mesoscale and Nanoscale Physics Condensed matter physics Magnetoresistance Bar (music) Polarity (physics) Thermal Hall effect FOS: Physical sciences Geometry General Chemistry Conductivity Quantum Hall effect Condensed Matter Physics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Magnetic field Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Materials Chemistry Fermi gas |
| Zdroj: | Solid State Communications, 130(10), 705-710. Elsevier |
| ISSN: | 1879-2766 0038-1098 |
| DOI: | 10.1016/j.ssc.2004.02.021 |
| Popis: | We have measured magnetotransport of the two-dimensional electron gas in a Hall bar geometry in the presence of small carrier density gradients. We find that the longitudinal resistances measured at both sides of the Hall bar interchange by reversing the polarity of the magnetic field. We offer a simple explanation for this effect and discuss implications for extracting conductivity flow diagrams of the integer quantum Hall effect. Comment: 7 pages, 8 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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