Transition of a nanomechanical sharvin oscillator towards the chaotic regime

Joon Hyong Cho, Minah Seo, Taikjin Lee, Jae Hun Kim, Seong Chan Jun, Young Min Jhon, Kang Hun Ahn, Robert H. Blick, Hee Chul Park, Chulki Kim

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3 Citations (Scopus)


Werealize a nanomechanical impact oscillator driven by a radiofrequency signal. The mechanical impact of the oscillator is demonstrated by increasing the amplitude of the external radiofrequency signals. Electron transport in the system is dramatically modified when the oscillator is strongly driven to undergo forced impacts with electrodes.Weexploit this nonlinear kind of electron transport to observe the current response in the chaotic regime. Our model adopting the Sharvin conductance at the moment of impact provides a description of the rectified current via the impact oscillator in the linear regime, revealing a path towards chaos.

Original languageEnglish
Article number033033
JournalNew Journal of Physics
Issue number3
Publication statusPublished - 2017

Bibliographical note

Funding Information:
This work was partially supported by the KIST institutional program (Project No. 2E27270), the IBS program (Project No. IBS-R024-D1), and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2013R1A1A2A10013147). RHB likes to thank the Center for Ultrafast Imaging for support. HCP thanks the KIAS Center for Advanced Computation for providing computing resources.

Publisher Copyright:
©2017 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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