Real-space calculations for electron transport properties of nanostructures

Tomoya Ono, Shigeru Tsukamoto, Yoshiyuki Egami, Yoshitaka Fujimoto

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Recent developments in the fabrication and investigation of conductors of atomic dimensions have stimulated a large number of experimental and theoretical studies on these nanoscale devices. In this paper, we introduce examples presenting the efficiencies and advantages of a first-principles transport calculation scheme based on the real-space finite-difference (RSFD) formalism and the overbridging boundary-matching (OBM) method. The RSFD method does not suffer from the artificial periodicity problems that arise in methods using plane-wave basis sets or the linear dependence problems that occur in methods using atomic basis sets. Moreover, the algorithm of the RSFD method is suitable for massively parallel computers and, thus, the combination of the RSFD and OBM methods enables us to execute first-principles transport calculations using large models. To demonstrate the advantages of this method, several applications of the transport calculations in various systems ranging from jellium nanowires to the tip and surface system of scanning tunneling microscopy are presented.

Original languageEnglish
Article number394203
JournalJournal of Physics Condensed Matter
Issue number39
Publication statusPublished - Oct 5 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics


Dive into the research topics of 'Real-space calculations for electron transport properties of nanostructures'. Together they form a unique fingerprint.

Cite this