Critical current density for the dissipationless quantum Hall effect
- 1 August 1986
- journal article
- letter
- Published by IOP Publishing in Semiconductor Science and Technology
- Vol. 1 (2) , 110-112
- https://doi.org/10.1088/0268-1242/1/2/002
Abstract
In quantum Hall effect experiments, there is a critical measuring current, beyond which dissipation becomes apparent. Using samples with a narrow constriction in the middle, the authors have observed critical current densities which are much higher than previously reported values.Keywords
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