| Title: | Chemical Instability of an Interface between Silver and Bi2Se3 Topological Insulator at Room Temperature |
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| Authors: | ID Ferfolja, Katja, Materials Research Laboratory, University of Nova Gorica (Author)
ID Valant, Matjaž, Materials Research Laboratory, University of Nova Gorica, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China (Author)
ID Mikulska, Iuliia, Diamond Light Source Ltd., Harwell Science and Innovation Campus (Author)
ID Gardonio, Sandra, Materials Research Laboratory, University of Nova Gorica (Author)
ID Fanetti, Mattia, Materials Research Laboratory, University of Nova Gorica (Author) |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Understanding an interaction at an interface between a topological insulator and a metal is of critical importance when designing electronic and spintronic devices or when such systems are used in catalysis. In this paper, we report on a chemical instability of the interface between Bi2Se3 and Ag studied by X-ray powder diffraction and electron microscopy. We present strong experimental evidence of a redox solid-state reaction occurring at the interface with kinetics that is significant already at room temperature. The reaction yields Ag2Se, AgBiSe2, and Bi. The unexpected room-temperature chemical instability of the interface should be considered for all future theoretical and applicative studies involving the interface between Bi2Se3 and Ag. |
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| Keywords: | topological insulators, Ag, thin metal films, interfaces, redox reaction |
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| Year of publishing: | 2018 |
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| Number of pages: | 9980-9984 |
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| Numbering: | 122 |
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| PID: | 20.500.12556/RUNG-5565-77f7e224-58ac-e1ce-a83e-27b365f6f792 |
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| COBISS.SI-ID: | 5205243 |
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| DOI: | 10.1021/acs.jpcc.8b01543 |
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| NUK URN: | URN:SI:UNG:REP:MCWSSWH4 |
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| Publication date in RUNG: | 17.06.2020 |
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| Views: | 4404 |
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| Downloads: | 0 |
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