Excess-silver-induced bridge formation in a silver sulfide atomic switch

Zhongchang Wang; Tingkun Gu; Tomofumi Tada; Satoshi Watanabe

doi:10.1063/1.2963197

Excess-silver-induced bridge formation in a silver sulfide atomic switch

Zhongchang Wang, Tingkun Gu, Tomofumi Tada, Satoshi Watanabe

Research output: Contribution to journal › Article › peer-review

45 Citations (Scopus)

Abstract

Structural properties and electron transport of a Ag2 S atomic switch composed of Ag-Ag₂S-Ag heterostructure are investigated by nonequilibrium Green's function calculations considering the effect of excess Ag in the Ag₂S layer. In addition to confirming experimentally the formation of the Ag bridge inside Ag₂S, the bridge is found to consist of units having a structure similar to that of the Ag (111) face in the bulk Ag. The analyses of Mulliken population, transmission spectra, and current-voltage characteristics reveal that the bridge has a conductive and metallic nature.

Original language	English
Article number	152106
Journal	Applied Physics Letters
Volume	93
Issue number	15
DOIs	https://doi.org/10.1063/1.2963197
Publication status	Published - 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2963197

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title = "Excess-silver-induced bridge formation in a silver sulfide atomic switch",

abstract = "Structural properties and electron transport of a Ag2 S atomic switch composed of Ag-Ag2S-Ag heterostructure are investigated by nonequilibrium Green's function calculations considering the effect of excess Ag in the Ag2S layer. In addition to confirming experimentally the formation of the Ag bridge inside Ag2S, the bridge is found to consist of units having a structure similar to that of the Ag (111) face in the bulk Ag. The analyses of Mulliken population, transmission spectra, and current-voltage characteristics reveal that the bridge has a conductive and metallic nature.",

author = "Zhongchang Wang and Tingkun Gu and Tomofumi Tada and Satoshi Watanabe",

note = "Funding Information: The present study was supported in part by MEXT, Japan through a Grant-in-Aid for Scientific Research on Priority Area, “Nanoionics (439),” for Key-Technology, “Atomic Switch Programmed Device,” and through the 21st Century COE Program “Human-Friendly Materials based on Chemistry.” ",

year = "2008",

doi = "10.1063/1.2963197",

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volume = "93",

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T1 - Excess-silver-induced bridge formation in a silver sulfide atomic switch

AU - Wang, Zhongchang

AU - Gu, Tingkun

AU - Tada, Tomofumi

AU - Watanabe, Satoshi

N1 - Funding Information: The present study was supported in part by MEXT, Japan through a Grant-in-Aid for Scientific Research on Priority Area, “Nanoionics (439),” for Key-Technology, “Atomic Switch Programmed Device,” and through the 21st Century COE Program “Human-Friendly Materials based on Chemistry.”

PY - 2008

Y1 - 2008

N2 - Structural properties and electron transport of a Ag2 S atomic switch composed of Ag-Ag2S-Ag heterostructure are investigated by nonequilibrium Green's function calculations considering the effect of excess Ag in the Ag2S layer. In addition to confirming experimentally the formation of the Ag bridge inside Ag2S, the bridge is found to consist of units having a structure similar to that of the Ag (111) face in the bulk Ag. The analyses of Mulliken population, transmission spectra, and current-voltage characteristics reveal that the bridge has a conductive and metallic nature.

AB - Structural properties and electron transport of a Ag2 S atomic switch composed of Ag-Ag2S-Ag heterostructure are investigated by nonequilibrium Green's function calculations considering the effect of excess Ag in the Ag2S layer. In addition to confirming experimentally the formation of the Ag bridge inside Ag2S, the bridge is found to consist of units having a structure similar to that of the Ag (111) face in the bulk Ag. The analyses of Mulliken population, transmission spectra, and current-voltage characteristics reveal that the bridge has a conductive and metallic nature.

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Excess-silver-induced bridge formation in a silver sulfide atomic switch

Abstract

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