Off-resonance magnetoresistance spike in irradiated ultraclean 2D electron system Articles uri icon

publication date

  • May 2013

start page

  • 1

end page

  • 4


  • 241


  • 8

International Standard Serial Number (ISSN)

  • 1931-7573

Electronic International Standard Serial Number (EISSN)

  • 1556-276X


  • We report on the theoretical studies of a recently discovered strong radiation-induced magnetoresistance spike obtained in ultraclean two-dimensional electron systems at low temperatures. The most striking feature of this spike is that it shows up on the second harmonic of the cyclotron resonance. We apply the radiation-driven electron orbits model in the ultraclean scenario. Accordingly, we calculate the new average advanced distance by the electron in a scattering event which will define the unexpected resonance spike position. Calculated results are in good agreement with experiments.


  • off-resonance; microwaves; magnetoresistance