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Multiple and virtual photon processes in radiation-induced magnetoresistance oscillations in two-dimensional electron systems

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 نشر من قبل X. L. Lei
 تاريخ النشر 2006
  مجال البحث فيزياء
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Recently discovered new structures and zero-resistance states outside the well-known oscillations are demonstrated to arise from multiphoton assisted processes, by a detailed analysis of microwave photoresistance in two-dimensional electron systems under enhanced radiation. The concomitant resistance dropping and peak narrowing observed in the experiments are also reproduced. We show that the radiation-induced suppression of average resistance comes from virtual photon effect and exists throughout the whole magnetic field range.



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