Electric current induced modification of germanium nanowire NEM switch contact

R. Meija, J. Kosmaca, L. Jasulaneca, K. Petersons, S. Biswas, J. D. Holmes, D. Erts

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We present an investigation of contact properties of a germanium (Ge) nanowire based nanoelectromechanical (NEM) switch in its ON state. The contact stiffness in the ON state was evaluated by detecting the nanowire's resonance frequency. It was found that the resonance frequency increases when electric current flows through the nanowire/counter electrode contact area. The reason for modification in the contact area is referred to as electric-current-induced processes in the native oxide layer covering the nanowires. The presented resonance shift method is a simple way to indicate strengthening of the nanowire/counter electrode contact area without disassembling the contact.

Original languageEnglish
Article number195503
Issue number19
Publication statusPublished - 15 May 2015
Externally publishedYes


  • germanium nanowire
  • nanoelectromechanical switch
  • resonance

Field of Science*

  • 2.10 Nano-technology
  • 2.4 Chemical engineering
  • 1.3 Physical sciences

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database


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