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

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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number012106
JournalApplied Physics Letters
Volume100
Issue number1
DOIs
Publication statusPublished - 2012 Jan 2

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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