20.500.12556/RUNG-5565-77f7e224-58ac-e1ce-a83e-27b365f6f792
Chemical Instability of an Interface between Silver and Bi2Se3 Topological Insulator at Room Temperature
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.
topological insulators
Ag
thin metal films
interfaces
redox reaction
true
true
false
Angleški jezik
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2020-06-15 08:03:31
2020-06-17 08:41:36
2023-06-09 03:39:16
0000-00-00 00:00:00
2018
0
0
9980-9984
122
2018
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
5205243
10.1021/acs.jpcc.8b01543
URN:SI:UNG:REP:MCWSSWH4
Univerza v Novi Gorici
0
1
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