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Investigation of Ag and Cu Filament Formation Inside the Metal Sulfide Layer of an Atomic Switch Based on Point-Contact Spectroscopy.
Aiba, A; Koizumi, R; Tsuruoka, T; Terabe, K; Tsukagoshi, K; Kaneko, S; Fujii, S; Nishino, T; Kiguchi, M.
Afiliación
  • Aiba A; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
  • Koizumi R; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
  • Tsuruoka T; International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1 Tsukuba , Ibaraki 305-0044 , Japan.
  • Terabe K; International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1 Tsukuba , Ibaraki 305-0044 , Japan.
  • Tsukagoshi K; International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1 Tsukuba , Ibaraki 305-0044 , Japan.
  • Kaneko S; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
  • Fujii S; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
  • Nishino T; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
  • Kiguchi M; Department of Chemistry, School of Science , Tokyo Institute of Technology , 2-12-1 W4-10 Ookayama , Meguro-ku, Tokyo 152-8551 , Japan.
ACS Appl Mater Interfaces ; 11(30): 27178-27182, 2019 Jul 31.
Article en En | MEDLINE | ID: mdl-31276618
The atomic switches have attracted wide attention owing to their applications in nonvolatile electric devices. The atomic switch is operated by the formation and dissipation of a metallic filament inside a metal sulfide film, which is controlled by a solid electrochemical reaction. Although the metallic filament is considered to consist of metal atoms, the chemical species of the metallic filament are difficult to be identified due to challenges in observing the metallic filament inside the solid. In this study, we report the investigation on the metallic filament in the atomic switch with metal sulfide based on point-contact spectroscopy (PCS). By cooling the atomic switch, the switch voltage increased to 1 V, which allowed for the PCS measurement. The PCS revealed that the metallic filament was composed of Ag atoms in the case of the Pt/Ag2S/Ag atomic switch. We applied this technique to the Pt/Cu2S/Ag and Pt/Ag2S/Cu atomic switches to uncover the formation process of the metallic filament. In both atomic switches, the chemical species of the metallic filament were Ag. The metal atoms were supplied from both the metal electrode and the sulfide layer.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2019 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos
Texto completo
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Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2019 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Estados Unidos