RT Journal Article
T1 Evidence of radiation-driven Landau states in 2D electron systems: magnetoresistance oscillations phase shift
A1 Iñarrea Las Heras, Jesús
AB We provide the ultimate explanation of one of the core features of microwave-induced magnetoresistance oscillations in high-mobility two-dimensional electron systems: the 1/4-cycle phase shift of minima. We start with the radiation-driven electron orbits model with the novel concept of scattering flight-time between Landau states. We calculate the extrema and nodes positions obtaining an exact coincidence with the experimental ones. The main finding is that the physical origin of the phase shift is a delay of pi/2 of the radiation-driven Landau guiding center with respect to radiation, demonstrating the oscillating nature of the irradiated Landau states. We analyze the dependence of this minima on radiation frequency and power and its possible shift with the quality of the sample.
PB IOP Publising
SN 0295-5075
YR 2016
FD 2016-03-18
LK https://hdl.handle.net/10016/35964
UL https://hdl.handle.net/10016/35964
LA eng
NO This work is supported by the MINECO (Spain) under grant MAT2014-58241-P and ITN Grant 234970 (EU), Grupo de Matematicas Aplicadas a la Materia Condensada, (UC3M), Unidad Asociada al CSIC.
DS e-Archivo
RD 1 sept. 2024