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Observation of Microwave-Induced Zero-Conductance State in Corbino Rings of a Two-Dimensional Electron System

2003/03/24 by C. L. Yang, M. A. Zudov, T. A. Knuuttila +4 · 14 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.soft

paper · pdf · doi:10.1103/physrevlett.91.096803

published as Phys. Rev. Lett. 91, 096803 (2003) · 4 pages, 3 figures, RevTex4

arxiv created 2003/03/24 · openalex publication_date 2003/08/29 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using Corbino samples we have observed oscillatory dc conductance in a high-mobility two-dimensional electron system when it is subjected to crossed microwave and magnetic fields. At the strongest of the oscillation minima the conductance is found to be vanishingly small, indicating a macroscopic insulating state associated with this minimum. With increasing voltage bias, a crossover from Ohmic to electron-heating regime is observed.

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