Activation of topological insulator phase in kagomé-type bilayers by interlayer coupling: The cases of Ni(CO)4 and Pd(CO)4

We predict that a 2D kagomé-type topological insulator (TI) can be built as a bilayer of a single-layer material that is not a TI. We demonstrate this through first-principles calculations of a class of C 6 O 6 and C 6 ( NH ) 6 based 2D metal-organic frameworks. We find that minimum-energy bilayers...

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Veröffentlicht in:	Applied physics letters 2020-03, Vol.116 (10)
Hauptverfasser:	Silveira, Orlando J., Ribeiro, Guilherme A. S., Chacham, Helio
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied physics First principles Interlayers Metal-organic frameworks Monolayers Nickel carbonyl Palladium Stoichiometry Topological insulators Topology Two dimensional materials
Online-Zugang:	Volltext
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