Chemical Instability of an Interface between Silver and Bi2Se3 Topological Insulator at Room TemperatureKatja Ferfolja
, Matjaž Valant
, I. Mikulska
, Sandra Gardonio
, Mattia Fanetti
, 2018, izvirni znanstveni članek
Opis: 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.
Najdeno v: ključnih besedah
Povzetek najdenega: ...topological insulators, Ag, thin metal films, interfaces, redox reaction...
Ključne besede: topological insulators, Ag, thin metal films, interfaces, redox reaction
Objavljeno: 17.06.2020; Ogledov: 690; Prenosov: 0
Polno besedilo (3,93 MB)