Chemical instability of an interface between silver and Bi[sub]2Se[sub]3 topological insulator at room temperature

Katja Ferfolja (Avtor), Matjaž Valant (Avtor), I. Mikulska (Avtor), Sandra Gardonio (Avtor), Mattia Fanetti (Avtor)

Povzetek

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.

Ključne besede

topološki izolatorji;Bi2Se3;kovinski stiki;

Podatki

Jezik:	Angleški jezik
Leto izida:	2018
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UNG - Univerza v Novi Gorici
UDK:	53
COBISS:	5205243
ISSN:	1932-7447
Št. ogledov:	2182
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

URN:	URN:SI:UNG
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	str. 9980-9984
Letnik:	ǂVol. ǂ122
Zvezek:	ǂno. ǂ18
Čas izdaje:	2018
DOI:	10.1021/acs.jpcc.8b01543
ID:	11846172