Reconstruction of tip-surface interactions with multimodal intermodulation atomic force microscopy

POSTER

Abstract

We present a developed theoretical framework for reconstructing tip-surface interactions using the intermodulation technique when more than one eigenmode is required to describe the cantilever motion. Two particular cases of bimodal motion are studied numerically: one bending and one torsional mode, and two bending modes. We demonstrate the possibility of accurate reconstruction of a two-dimensional conservative force field for the former case, while dissipative forces are studied for the latter.

*This work is supported by Nordita, DOE, VR VCB 621-2012-2983, the Knut and Allice Wallenberg Foundation, and the Olle Enqvist Foundation.

Authors

  • Stanislav Borysov

    • Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-106 91 Stockholm, Sweden

  • Daniel Platz

    • Nanostructure Physics, KTH Royal Institute of Technology, Roslagstullsbacken 21, SE-106 91 Stockholm, Sweden

  • Astrid de Wijn

    • Department of Physics, Stockholm University, SE-106 91 Stockholm, Sweden

  • Daniel Forchheimer

    • Nanostructure Physics, KTH Royal Institute of Technology, Roslagstullsbacken 21, SE-106 91 Stockholm, Sweden

  • Eric Tol\'en

    • Intermodulation Products AB, Vasav\"agen 29, Solna SE-169 58, Sweden

  • Alexander Balatsky

    • Nordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, SE-106 91 Stockholm, Sweden

  • David Haviland

    • Nanostructure Physics, KTH Royal Institute of Technology, Roslagstullsbacken 21, SE-106 91 Stockholm, Sweden