Dr. Asako Terasawa

Research Fellow

Asako

DBB.01.005
+44 (0) 28 90976115
a.terasawa@qub.ac.uk

Atomistic Simulation Centre School of Mathematics and Physics Queen's University Belfast University Road Belfast BT7 1NN Northern Ireland

Degrees, Awards and Honours

    Interests

      Most Recent Publications

      1. An ignition key for atomic-scale engines, Journal of Physics: Condensed Matter, 2012, 24, pp. 402203-1
        doi: 10.1088/0953-8984/24/40/402203 Abstract
        A current-carrying resonant nanoscale device, simulated by non-adiabatic molecular dynamics, exhibits sharp activation of non-conservative current-induced forces with bias. The result, above the critical bias, is generalized rotational atomic motion with a large gain in kinetic energy. The activation exploits sharp features in the electronic structure, and constitutes, in effect, an ignition key for atomic-scale motors. A controlling factor for the effect is the non-equilibrium dynamical response matrix for small-amplitude atomic motion under current. This matrix can be found from the steady-state electronic structure by a simpler static calculation, providing a way to detect the likely appearance, or otherwise, of non-conservative dynamics, in advance of real-time modelling.

      All of Asako's publications


      Asako Terasawa

      Reasearch Fellow

      Address

      Room A5
      Atomistic Simulation Centre
      Department of Physics and Astronomy
      School of Mathematics and Physics
      Queen's University Belfast
      University Road
      Belfast BT7 1NN
      Northern Ireland

      Tel: +44 (0) 28 9097 3528
      Fax: +44 (0) 28 9097 3110
      Email: a.terasawa@qub.ac.uk

      Recent Publications