This article is cited in 17 papers

Manufacturing, processing, testing of materials and structures

Acanthite–argentite transformation in nanocrystalline silver sulfide and the Ag$_2$S/Ag nanoheterostructure

A. I. Gusev, S. I. Sadovnikov

Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: Nanocrystalline acanthite-structured silver sulfide of the monoclinic structure and a Ag$_2$S/Ag nanoheterostructure are produced. The high-temperature X-ray diffraction technique is applied to the in situ study of the (acanthite $\alpha$-Ag$_2$S)–(argentite $\beta$-Ag$_2$S) phase transformation in nanocrystalline silver sulfide. The crystal structure of argentite is refined, and it is found that the content of vacant sites in the metal sublattice of argentite exceeds 92%. A model of a resistive switch, whose operation is based on the reversible acanthite–argentite transformation in a Ag$_2$S/Ag heterostructure, is considered.

Keywords: Conductive Channel, Resistive Switch, Vacant Site, Cation Sublattice, Silver Sulfide.

Received: 23.09.2015
Accepted: 01.10.2015

 English version: Semiconductors, 2016, 50:5, 682–687

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