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Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact. / Levin, A. D.; Mikhailov, S. A.; Gusev, G. M. et al.

In: Physical Review B, Vol. 95, No. 8, 081408, 23.02.2017.

Research output: Contribution to journal › Article › peer-review

Harvard

Levin, AD, Mikhailov, SA, Gusev, GM, Kvon, ZD, Rodyakina, EE & Latyshev, AV 2017, 'Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact', Physical Review B, vol. 95, no. 8, 081408. https://doi.org/10.1103/PhysRevB.95.081408

APA

Levin, A. D., Mikhailov, S. A., Gusev, G. M., Kvon, Z. D., Rodyakina, E. E., & Latyshev, A. V. (2017). Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact. Physical Review B, 95(8), [081408]. https://doi.org/10.1103/PhysRevB.95.081408

Vancouver

Levin AD, Mikhailov SA, Gusev GM, Kvon ZD, Rodyakina EE, Latyshev AV. Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact. Physical Review B. 2017 Feb 23;95(8):081408. doi: 10.1103/PhysRevB.95.081408

Author

Levin, A. D. ; Mikhailov, S. A. ; Gusev, G. M. et al. / Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact. In: Physical Review B. 2017 ; Vol. 95, No. 8.

BibTeX

@article{f9851376664d4a9d86b24e0072bd295f,
title = "Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact",
abstract = "We have studied the magnetoresistance of a quantum point contact fabricated on a high mobility two-dimensional electron gas (2DEG) exposed to microwave irradiation. The resistance reveals giant B-periodic oscillations with a relative amplitude ΔR/R of up to 700% resulting from the propagation and interference of the edge magnetoplasmons (EMPs) in the sample. This giant photoconductance is attributed to the considerably large local electron density modulation in the vicinity of the point contact. We have also analyzed the oscillation periods ΔB of the resistance oscillations and, comparing the data with the EMP theory, extracted the EMP interference length L. We have found that the length L substantially exceeds the distance between the contact leads, and rather corresponds to the distance between metallic contact pads measured along the edge of the 2DEG. This resolves existing controversy in the literature and should help to properly design highly sensitive microwave and terahertz spectrometers based on the discussed effect.",
author = "Levin, {A. D.} and Mikhailov, {S. A.} and Gusev, {G. M.} and Kvon, {Z. D.} and Rodyakina, {E. E.} and Latyshev, {A. V.}",
year = "2017",
month = feb,
day = "23",
doi = "10.1103/PhysRevB.95.081408",
language = "English",
volume = "95",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Giant microwave-induced B -periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact

AU - Levin, A. D.

AU - Mikhailov, S. A.

AU - Gusev, G. M.

AU - Kvon, Z. D.

AU - Rodyakina, E. E.

AU - Latyshev, A. V.

PY - 2017/2/23

Y1 - 2017/2/23

N2 - We have studied the magnetoresistance of a quantum point contact fabricated on a high mobility two-dimensional electron gas (2DEG) exposed to microwave irradiation. The resistance reveals giant B-periodic oscillations with a relative amplitude ΔR/R of up to 700% resulting from the propagation and interference of the edge magnetoplasmons (EMPs) in the sample. This giant photoconductance is attributed to the considerably large local electron density modulation in the vicinity of the point contact. We have also analyzed the oscillation periods ΔB of the resistance oscillations and, comparing the data with the EMP theory, extracted the EMP interference length L. We have found that the length L substantially exceeds the distance between the contact leads, and rather corresponds to the distance between metallic contact pads measured along the edge of the 2DEG. This resolves existing controversy in the literature and should help to properly design highly sensitive microwave and terahertz spectrometers based on the discussed effect.

AB - We have studied the magnetoresistance of a quantum point contact fabricated on a high mobility two-dimensional electron gas (2DEG) exposed to microwave irradiation. The resistance reveals giant B-periodic oscillations with a relative amplitude ΔR/R of up to 700% resulting from the propagation and interference of the edge magnetoplasmons (EMPs) in the sample. This giant photoconductance is attributed to the considerably large local electron density modulation in the vicinity of the point contact. We have also analyzed the oscillation periods ΔB of the resistance oscillations and, comparing the data with the EMP theory, extracted the EMP interference length L. We have found that the length L substantially exceeds the distance between the contact leads, and rather corresponds to the distance between metallic contact pads measured along the edge of the 2DEG. This resolves existing controversy in the literature and should help to properly design highly sensitive microwave and terahertz spectrometers based on the discussed effect.

UR - http://www.scopus.com/inward/record.url?scp=85014532373&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.95.081408

DO - 10.1103/PhysRevB.95.081408

M3 - Article

AN - SCOPUS:85014532373

VL - 95

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 8

M1 - 081408

ER -

ID: 10277290