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Título

From zero resistance states to absolute negative conductivity in microwave irradiated two-dimensional electron systems

AutorIñarrea, J.; Platero, Gloria
Fecha de publicaciónago-2006
EditorAmerican Institute of Physics
CitaciónApplied Physics Letters 89(5): 052109 (2006)
ResumenRecent experimental results regarding a two-dimensional electron gas subjected to microwave radiation reveal that magnetoresistivity, apart from presenting oscillations and zero resistance states, can evolve to negative values at minima. Here the authors present a theoretical model which explains the transition from zero resistance states to absolute negative conductivity in terms of multiphoton assisted electron scattering due to charged impurities and shows how this transition can be driven by tuning microwave frequency and intensity. This opens the possibility of controlling the magnetoconductivity in microwave driven nanodevices and understanding the novel optical and transport properties of such devices.
Descripción3 pages, 4 figures.
Versión del editorhttp://dx.doi.org/10.1063/1.2335408
URIhttp://hdl.handle.net/10261/22334
DOI10.1063/1.2335408
ISSN0003-6951
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