Observation of highly dispersive bands in pure thin film C$_{60}$
| Autor: | Latzke, Drew W., Ojeda-Aristizabal, Claudia, Griffin, Sinéad M., Denlinger, Jonathan D., Neaton, Jeffrey B., Zettl, Alex, Lanzara, Alessandra |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Phys. Rev. B 99, 045425 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevB.99.045425 |
| Popis: | 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. Comment: 7 pages, 4 figures |
| Databáze: | arXiv |
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