Signatures of an Atomic Crystal in the Band Structure of a Molecular Thin Film

Abstract

Transport phenomena in molecular materials are intrinsically linked to the orbital character and the degree of localization of the valence states. Here, we combine angle-resolved photoemission with photoemission tomography to determine the spatial distribution of all molecular states of the valence band structure of a C${}_{60}$ thin film. While the two most frontier valence states exhibit a strong band dispersion, the states at larger binding energies are characterized by distinct emission patterns in energy and momentum space. Our findings demonstrate the formation of an atomic crystal-like band structure in a molecular solid with delocalized $\pi$-like valence states and strongly localized $\sigma$-states at larger binding energies.

References in corpus (2)

• The GW compendium: A practical guide to theoretical photoemission spectroscopy
• Observation of highly dispersive bands in pure thin film C${}_{60}$

Cited by in corpus (6)

• Ultrafast charge-transfer exciton dynamics in C${}_{60}$ thin films
• Multiorbital exciton formation in an organic semiconductor
• Revealing Hidden Spin Polarization in Centrosymmetric van der Waals Materials on Ultrafast Timescales
• Evidence for Band Renormalizations in Strong-coupling Superconducting Alkali-fulleride Films
• Multispectral time-resolved energy-momentum microscopy using high-harmonic extreme ultraviolet radiation
• Ultrafast charge carrier separation in Potassium-intercalated endohedral metallofullerene Sc${}_3$N@C${}_{80}$ thin films