Motion detection of a micromechanical cantilever through magneto-piezovoltage in two-dimensional electron systems

H. Yamaguchi; H. Okamoto; S. Ishihara; Y. Hirayama

doi:10.1063/1.3674288

Motion detection of a micromechanical cantilever through magneto-piezovoltage in two-dimensional electron systems

H. Yamaguchi, H. Okamoto, S. Ishihara, Y. Hirayama

SCI - Physics

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

5 Citations (Scopus)

Abstract

We study the strain-induced voltage generation, i.e., piezovoltage, in a two-dimensional electron system under a magnetic field at low temperature. We find its strong magnetic-field dependence, where the voltage increases up to several microvolts at the boundaries between localized and extended electronic states. The order of magnitude of the generated electrical power is comparable to that of the energy dissipation in mechanical vibration, indicating high-efficiency mechanical-to-electrical energy transduction.

Original language	English
Article number	012106
Journal	Applied Physics Letters
Volume	100
Issue number	1
DOIs	https://doi.org/10.1063/1.3674288
Publication status	Published - 2012 Jan 2

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Motion detection of a micromechanical cantilever through magneto-piezovoltage in two-dimensional electron systems",

abstract = "We study the strain-induced voltage generation, i.e., piezovoltage, in a two-dimensional electron system under a magnetic field at low temperature. We find its strong magnetic-field dependence, where the voltage increases up to several microvolts at the boundaries between localized and extended electronic states. The order of magnitude of the generated electrical power is comparable to that of the energy dissipation in mechanical vibration, indicating high-efficiency mechanical-to-electrical energy transduction.",

author = "H. Yamaguchi and H. Okamoto and S. Ishihara and Y. Hirayama",

note = "Funding Information: We thank Y. Maruta and S. Miyashita for their support with the sample measurements and fabrication. We also acknowledge I. Mahboob and S. Etaki for valuable discussions and suggestions. This work was partly supported by JSPS KAKENHI (22226004 and 23241046). ",

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AU - Yamaguchi, H.

AU - Okamoto, H.

AU - Ishihara, S.

AU - Hirayama, Y.

N1 - Funding Information: We thank Y. Maruta and S. Miyashita for their support with the sample measurements and fabrication. We also acknowledge I. Mahboob and S. Etaki for valuable discussions and suggestions. This work was partly supported by JSPS KAKENHI (22226004 and 23241046).

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N2 - We study the strain-induced voltage generation, i.e., piezovoltage, in a two-dimensional electron system under a magnetic field at low temperature. We find its strong magnetic-field dependence, where the voltage increases up to several microvolts at the boundaries between localized and extended electronic states. The order of magnitude of the generated electrical power is comparable to that of the energy dissipation in mechanical vibration, indicating high-efficiency mechanical-to-electrical energy transduction.

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