Influence of a parallel magnetic field on the microwave photoconductivity in a high-mobility two-dimensional electron system

C. L. Yang; R. R. Du; L. N. Pfeiffer; K. W. West

doi:10.1103/PhysRevB.74.045315

Influence of a parallel magnetic field on the microwave photoconductivity in a high-mobility two-dimensional electron system

C. L. Yang, R. R. Du, L. N. Pfeiffer, K. W. West

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Abstract

Using a two-axis magnet, we have studied experimentally the influence of a parallel magnetic field (B) on microwave-induced resistance oscillations (MIROs) and zero-resistance states (ZRS) previously discovered in a high-mobility two-dimensional electron system. We have observed a strong suppression of MIRO/ZRS by a modest B ∼1 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 apparently enhanced by B. These findings cannot be explained by a simple modification of single-particle energy spectrum and/or scattering parameters by B.

Original language	English (US)
Article number	045315
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	74
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevB.74.045315
State	Published - 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Influence of a parallel magnetic field on the microwave photoconductivity in a high-mobility two-dimensional electron system",

abstract = "Using a two-axis magnet, we have studied experimentally the influence of a parallel magnetic field (B) on microwave-induced resistance oscillations (MIROs) and zero-resistance states (ZRS) previously discovered in a high-mobility two-dimensional electron system. We have observed a strong suppression of MIRO/ZRS by a modest B ∼1 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 apparently enhanced by B. These findings cannot be explained by a simple modification of single-particle energy spectrum and/or scattering parameters by B.",

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AU - Yang, C. L.

AU - Du, R. R.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2006

Y1 - 2006

N2 - Using a two-axis magnet, we have studied experimentally the influence of a parallel magnetic field (B) on microwave-induced resistance oscillations (MIROs) and zero-resistance states (ZRS) previously discovered in a high-mobility two-dimensional electron system. We have observed a strong suppression of MIRO/ZRS by a modest B ∼1 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 apparently enhanced by B. These findings cannot be explained by a simple modification of single-particle energy spectrum and/or scattering parameters by B.

AB - Using a two-axis magnet, we have studied experimentally the influence of a parallel magnetic field (B) on microwave-induced resistance oscillations (MIROs) and zero-resistance states (ZRS) previously discovered in a high-mobility two-dimensional electron system. We have observed a strong suppression of MIRO/ZRS by a modest B ∼1 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 apparently enhanced by B. These findings cannot be explained by a simple modification of single-particle energy spectrum and/or scattering parameters by B.

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Influence of a parallel magnetic field on the microwave photoconductivity in a high-mobility two-dimensional electron system

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