A nano-mechanical device using a Ag2S-C60 system

Yuya Ishikawa, Tsuyoshi Hasegawa, Christian Joachim

Research output: Contribution to journalArticle

Abstract

Electronic circuit elements that show analog resistance change are required for the development of hardware-based machine learning systems. The energy level of a molecular orbital changes when the bond angle is distorted, for example when using a C60 molecule that is compressed by a scanning tunneling microscope (STM). The issue for practical use of this phenomenon is how to compress a C60 molecule in actual devices. In this study we have developed an electrochemical method in which Ag atoms precipitated from a Ag2S electrode compress a C60 molecule. We measured the I/V characteristics of a C60 molecule using a STM equipped with a Ag2S tip. The I/V characteristics clearly show the change in electronic states of the C60 molecule due to compression by the precipitated Ag atoms. Since this method can be implemented in actual devices, a Ag2S-C60 system will be a candidate element for future machine learning systems.

Original languageEnglish
Article numberSDDF02
JournalJapanese journal of applied physics
Volume58
Issue numberSD
DOIs
Publication statusPublished - 2019 Jan 1

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mechanical devices
Learning systems
Molecules
machine learning
molecules
Microscopes
microscopes
Scanning
Atoms
scanning
Electronic states
Molecular orbitals
electronics
Electron energy levels
atoms
molecular orbitals
hardware
energy levels
analogs
Hardware

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

A nano-mechanical device using a Ag2S-C60 system. / Ishikawa, Yuya; Hasegawa, Tsuyoshi; Joachim, Christian.

In: Japanese journal of applied physics, Vol. 58, No. SD, SDDF02, 01.01.2019.

Research output: Contribution to journalArticle

Ishikawa, Yuya ; Hasegawa, Tsuyoshi ; Joachim, Christian. / A nano-mechanical device using a Ag2S-C60 system. In: Japanese journal of applied physics. 2019 ; Vol. 58, No. SD.
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