Theoretical study of four-probe resistance in nanoscale measurements: Monatomic carbon chains and (5,5)-carbon nanotubes

Asako Terasawa, Tomofumi Tada, Satoshi Watanabe

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Simulations of four-probe resistance measurements of monatomic carbon chains and (5,5)-carbon nanotubes were carried out using the self-consistent charge density-functional tight-binding method and the Green's function method. The four-probe resistance spectra show oscillations depending on the probe geometries and become negative at specific electron energies. These features coincide qualitatively with those experimentally observed by Gao [Phys. Rev. Lett. 95, 196802 (2005)]. It is shown that the resistance oscillations can be attributed to the interference of electron waves between the two voltage probes.

Original languageEnglish
Article number195436
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number19
DOIs
Publication statusPublished - May 1 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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