Origin of current-induced forces in an atomic gold wire:  A first-principles study

Mads Brandbyge, Kurt Stokbro, Jeremy Taylor, José-Luis Mozos, and Pablo Ordejón
Phys. Rev. B 67, 193104 – Published 20 May 2003
PDFExport Citation

Abstract

We address the microscopic origin of the current-induced forces by analyzing results of first principles density functional calculations of atomic gold wires connected to two gold electrodes with different electrochemical potentials. We find that current induced forces are closely related to the chemical bonding, and arise from the rearrangement of bond charge due to the current flow. We explain the current induced bond weakening/strengthening by introducing bond charges decomposed into electrode components.

  • Received 10 December 2002

DOI:https://doi.org/10.1103/PhysRevB.67.193104

©2003 American Physical Society

Authors & Affiliations

Mads Brandbyge1,*, Kurt Stokbro1, Jeremy Taylor1, José-Luis Mozos2, and Pablo Ordejón2

  • 1Mikroelektronik Centret (MIC), Technical University of Denmark, Bldg. 345E, DK-2800 Lyngby, Denmark
  • 2Institut de Ciencia de Materials de Barcelona, CSIC Campus de la U.A.B., 08193 Bellaterra, Spain

  • *Electronic address: mbr@mic.dtu.dk

References (Subscription Required)

Click to Expand
Issue

Vol. 67, Iss. 19 — 15 May 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×