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Influence of a Parallel Magnetic Field on Microwave Photoconductivity in a High-Mobility 2D Electron System

C. L. Yang·R. R. Du·L. N. Pfeiffer·K. W. West
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Abstract

We have studied experimentally the influence of a parallel magnetic field ($B_{//}$) on microwave-induced resistance oscillations (MIRO) and zero-resistance states (ZRS) previously discovered in a high-mobility 2D electron system. We have observed a strong suppression of MIRO/ZRS by a modest $B_{//}\sim 0.5$ T. In Hall bar samples, magnetoplasmon resonance (MPR) has also been observed concurrently with the MIRO/ZRS. In contrast to the suppression of MIRO/ZRS, the MPR peak is found to be enhanced by $B_{//}$. These findings have not been addressed by current models proposed to explain the microwave-induced effects.

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C. L. Yang, R. R. Du, L. N. Pfeiffer, K. W. West. 2005-04-27. Influence of a Parallel Magnetic Field on Microwave Photoconductivity in a High-Mobility 2D Electron System. https://arxiv.org/abs/cond-mat/0504715

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