Nonequilibrium quantum transport properties of a silver atomic switch

Zhongchang Wang, Takuya Kadohira, Tomofumi Tada, Satoshi Watanabe

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)


Combining nonequilibrium Green's function technique with density functional theory, electron transport, and structural properties of an Ag atomic switch through Ag2S have been investigated. We have found that an Ag atomic conductance channel in Ag2S is generated after structure optimization, resulting in large enhancement of the electron transmission coefficient at the Fermi level and metallic behavior of the Ag-Ag 2S-Ag system. Such spontaneous metallization at the Ag-Ag 2S interface may play an important role in fast switching of the Ag-Ag2S atomic switch.

Original languageEnglish
Pages (from-to)2688-2692
Number of pages5
JournalNano Letters
Issue number9
Publication statusPublished - Sept 1 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering


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