Nanoionics switching devices: "Atomic switches"

Tsuyoshi Hasegawa, Kazuya Terabe, Toshitsugu Sakamoto, Masakazu Aono

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)


Novel nanoionics devices, atomic switches, have been developed using a solidelectrochemical reaction to control the formation and annihilation of the metal filament between two electrodes. The switching operation can be achieved simply by the application of a bias voltage to precipitate metal atoms in a nanogap between the two electrodes or to dissolve them onto one of the electrodes. The small size of atomic switches enables rapid switching even though atomic motion is required. They also have several novel characteristics in that they are nonvolatile, consume less power, and have a simple structure and a low on-resistance. Logic gates and 1 kbit nonvolatile memory chips have been developed using atomic switches in order to demonstrate the possibilities for improving present-day electronic devices. Their characteristics also enable the fabrication of new types of electronic devices, such as high-performance programmable logic devices that may achieve a multitude of functions on a single chip.

Original languageEnglish
Pages (from-to)929-934
Number of pages6
JournalMRS Bulletin
Issue number12
Publication statusPublished - 2009 Dec
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Nanoionics switching devices: "Atomic switches"'. Together they form a unique fingerprint.

Cite this