Controlling chaos in dynamic-mode atomic force microscope

Kohei Yamasue, Kei Kobayashi, Hirofumi Yamada, Kazumi Matsushige, Takashi Hikihara

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


We successfully demonstrated the first experimental stabilization of irregular and non-periodic cantilever oscillation in the amplitude modulation atomic force microscopy using the time-delayed feedback control. A perturbation to cantilever excitation force stabilized an unstable periodic orbit associated with nonlinear cantilever dynamics. Instead of the typical piezoelectric excitation, the magnetic excitation was used for directly applying control force to the cantilever. The control force also suppressed the cantilever's occasional bouncing motions that caused artifacts on a surface image.

Original languageEnglish
Pages (from-to)3140-3144
Number of pages5
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number35
Publication statusPublished - 2009 Aug 24


  • Atomic force microscopy
  • Cantilever
  • Controlling chaos
  • Time-delayed feedback control


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