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Temperature-dependent high-current breakdown of the quantum Hall effect

Matthews, A. J., Kavokin, K. V., Usher, A., Portnoi, M. E., Zhu, M., Gething, J. D., Elliott, Martin ORCID: https://orcid.org/0000-0002-9254-9898, Herrenden-Harker, William, Phillips, K., Ritchie, D. A., Simmons, M. Y., Sorensen, C. B., Hansen, O. P., Mironov, O. A., Myronov, M., Leadley, D. R. and Henini, M. 2004. Temperature-dependent high-current breakdown of the quantum Hall effect. Physica E: Low-dimensional Systems and Nanostructures 22 (1-3) , pp. 201-204. 10.1016/j.physe.2003.11.249

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Abstract

We have developed a model of the high-current breakdown of the integer quantum Hall effect, as measured in contactless experiments using a highly-sensitive torsion balance magnetometer. The model predicts that, for low-mobility samples, the critical current for breakdown should decrease linearly with temperature. This prediction is verified experimentally with the addition of a low-temperature View the MathML source saturation of the critical current. It is shown that this saturation is consistent with quasi-elastic inter-Landau-level scattering when the maximum electric field in the sample reaches a large enough value.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Uncontrolled Keywords: Quantum Hall; Breakdown; Current
Publisher: Elsevier
ISSN: 1386-9477
Last Modified: 25 Oct 2022 09:39
URI: https://orca.cardiff.ac.uk/id/eprint/59504

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