Effect of dc excitation on microwave-induced resistance oscillations and zero-resistance states in a two-dimensional electron system

W. Zhang, M. A. Zudov, L. N. Pfeiffer, K. W. West

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We study the effect of dc current on microwave photoresistance in a high-mobility two-dimensional electron system. We find that dc current leads to the evolution of the microwave photoresistance maxima into minima and vice versa. Observed quenching of microwave-induced zero resistance states by a dc current is consistent with the domain model but cannot be unambiguously linked to it. We derive a modified resonant condition for photoresistance oscillations under dc current and suggest interpretation in terms of indirect cyclotron resonances in Hall field tilted Landau levels. Detailed understanding of the evolution requires a systematic theory treating both excitation types within a single framework.

Original languageEnglish (US)
Pages (from-to)982-985
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Volume40
Issue number5
DOIs
StatePublished - Mar 1 2008

Keywords

  • Microwave-induced resistance oscillations
  • Non-equilibrium transport
  • Two-dimensional electron system
  • Zero-resistance states

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