TY - JOUR
T1 - Period and phase of microwave-induced resistance oscillations and zero-resistance states in two-dimensional electron systems
AU - Zudov, M. A.
PY - 2004/1/22
Y1 - 2004/1/22
N2 - We present phenomenological analysis of the period and the phase of microwave-induced resistance oscillations (MIRO) and “zero-resistance” states (ZRS) recently observed in two-dimensonal electron systems. While MIRO are found to be well described by a “1/4-cycle shift,” we find that as MIRO evolve into ZRS with increasing magnetic field B, the phase becomes progressively smaller, decreasing roughly as 1/B.As a result, both maxima and minima in the ZRS regime form periodic in 1/B sequences, without a 1/4-cycle shift. A simple model based on oscillatory density of states is found to provide a unified description of the period/phase of MIRO/ZRS and leads to an interpretation of previously reported fine structures in terms of multiphoton processes.
AB - We present phenomenological analysis of the period and the phase of microwave-induced resistance oscillations (MIRO) and “zero-resistance” states (ZRS) recently observed in two-dimensonal electron systems. While MIRO are found to be well described by a “1/4-cycle shift,” we find that as MIRO evolve into ZRS with increasing magnetic field B, the phase becomes progressively smaller, decreasing roughly as 1/B.As a result, both maxima and minima in the ZRS regime form periodic in 1/B sequences, without a 1/4-cycle shift. A simple model based on oscillatory density of states is found to provide a unified description of the period/phase of MIRO/ZRS and leads to an interpretation of previously reported fine structures in terms of multiphoton processes.
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U2 - 10.1103/PhysRevB.69.041304
DO - 10.1103/PhysRevB.69.041304
M3 - Article
AN - SCOPUS:1542344320
SN - 1098-0121
VL - 69
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 4
ER -