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Direct-current control of radiation-induced differential magnetoresistance oscillations in two-dimensional electron systems
- Source :
- Applied Physics Letters 91, 112104 (2007)
- Publication Year :
- 2007
-
Abstract
- Magnetoresistance oscillations in two-dimensional electron systems driven simultaneously by a strong direct current and a microwave irradiation, are analyzed within a unified microscopic scheme treating both excitations on an equal footing. The microwave-induced resistance oscillations are described by a parameter $\epsilon_\omega$ proportional to the radiation frequency, while the dc-induced resistance oscillations are governed by a parameter $\epsilon_j$ proportional to the current density. In the presence of both a microwave radiation and a strong dc, the combined parameter $\epsilon_\omega+\epsilon_j$ is shown to control the main resistance oscillations, in agreement with the recent measurement [Zhang {\it et al.} Phys. Rev. Lett. {\bf 98}, 106804 (2007)]<br />Comment: 4 pages, 2 figues, published version
- Subjects :
- Condensed Matter - Mesoscale and Nanoscale Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- Applied Physics Letters 91, 112104 (2007)
- Publication Type :
- Report
- Accession number :
- edsarx.0706.3094
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/1.2783260