Abstract
The size dependence of the magnetotransport properties of Al x Ga 1−x As-GaAs heterojunctions has been studied in high electric and magnetic fields. For the breakdown of the quantum Hall effect an increase of the critical drift velocity with decreasing sample width was found in Hall bar geometries, whereas in Corbino geometries a slight decrease was observed. In the regime of the breakdown step-like structures were observed for all sample sizes. A new instability was seen for filling factors of v < 2 at electric fields of ≈ 200V/cm.
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© 1989 Springer-Verlag Berlin, Heidelberg
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Haug, R.J., von Klitzing, K., Ploog, K. (1989). Hot Electron Magnetotransport in AlxGa1−xAs-GaAs Samples of Different Geometry. In: Landwehr, G. (eds) High Magnetic Fields in Semiconductor Physics II. Springer Series in Solid-State Sciences, vol 87. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83810-1_29
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DOI: https://doi.org/10.1007/978-3-642-83810-1_29
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-83812-5
Online ISBN: 978-3-642-83810-1
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