Atomic-scale dissipation processes in dynamic force spectroscopy

Shigeki Kawai, Filippo Federici Canova, Thilo Glatzel, Adam S. Foster, and Ernst Meyer
Phys. Rev. B 84, 115415 – Published 13 September 2011

Abstract

A systematic distance-dependent measurement of the quasistatic tip-sample interactions reveals a hidden stochastic dissipative interaction of the atomic-scale contact in dynamic force microscopy. By comparison of experiment with detailed molecular dynamics simulations, we demonstrate that the infrequently observed hysteresis loops are attributed to the formation of atomic chains during tip retraction. These lead to a large magnitude of energy dissipation in a single cycle and dominate the average measured dissipation, while also leading to differences in the forces measured in static and dynamic force microscopy. This paper provides quantitative force measurements and insights into atomic-scale dissipation processes.

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  • Received 18 August 2011

DOI:https://doi.org/10.1103/PhysRevB.84.115415

©2011 American Physical Society

Authors & Affiliations

Shigeki Kawai1,*, Filippo Federici Canova2,3,†, Thilo Glatzel1, Adam S. Foster2,3, and Ernst Meyer1

  • 1Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
  • 2Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33010 Tampere, Finland
  • 3Department of Applied Physics, Aalto University, P.O. Box 11100, FI-00076 Aalto, Finland

  • *shigeki.kawai@unibas.ch
  • filippo.federici@tut.fi

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Vol. 84, Iss. 11 — 15 September 2011

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