Observation of highly dispersive bands in pure thin film C$_{60}$

Kavli Affiliate: Alessandra Lanzara

| First 5 Authors: Drew W. Latzke, Claudia Ojeda-Aristizabal, Sinéad M. Griffin, Jonathan D. Denlinger, Jeffrey B. Neaton

| Summary:

While long-theorized, the direct observation of multiple highly dispersive
C$_{60}$ valence bands has eluded researchers for more than two decades due to
a variety of intrinsic and extrinsic factors. Here we report a realization of
multiple highly dispersive (330-520 meV) valence bands in pure thin film
C$_{60}$ on a novel substrate–the three-dimensional topological insulator
Bi$_{2}$Se$_{3}$–through the use of angle-resolved photoemission spectroscopy
(ARPES) and first-principles calculations. The effects of this novel substrate
reducing C$_{60}$ rotational disorder are discussed. Our results provide
important considerations for past and future band structure studies as well as
the increasingly popular C$_{60}$ electronic device applications, especially
those making use of heterostructures.

| Search Query: ArXiv Query: search_query=au:”Alessandra Lanzara”&id_list=&start=0&max_results=10

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