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- W2074804559 abstract "Using first-principles calculations we have investigated the electronic properties of Ag <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> S, which is commonly employed as the active matrix in nonvolatile conductive-bridge random access memories (CBRAM). To better understand the origin of the high conductivity of Ag-doped Ag <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> S we have created a new model for the high temperature form of this material, with electronic properties in good agreement with the available data. We have found that for a local silver concentration of 7.02 × 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>-4</sup> mol/cm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> Ag <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> S switches from a semiconductor to a metal, while for a slightly higher concentration of 7.05 × 10 <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>-4</sup> mol/cm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sup> Ag <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> S forms polytetrahedral clusters within the structure. Our findings offer a consistent explanation for the measured high conductivity of Ag <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> S." @default.
- W2074804559 created "2016-06-24" @default.
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- W2074804559 date "2013-09-01" @default.
- W2074804559 modified "2023-09-30" @default.
- W2074804559 title "Understanding the conduction mechanism of the chalcogenide Ag<inf>2</inf>S silver-doped through ab initio simulation" @default.
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- W2074804559 doi "https://doi.org/10.1109/essderc.2013.6818888" @default.
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