Observation of highly dispersive bands in pure thin film C60

@article{Latzke2019ObservationOH,
  title={Observation of highly dispersive bands in pure thin film 
C60},
  author={Drew W. Latzke and Claudia Ojeda-Aristizabal and Sin{\'e}ad M. Griffin and Jonathan D. Denlinger and Jeffrey B. Neaton and Alex Zettl and Alessandra Lanzara},
  journal={Physical Review B},
  year={2019}
}
Author(s): Latzke, DW; Ojeda-Aristizabal, C; Griffin, SM; Denlinger, JD; Neaton, JB; Zettl, A; Lanzara, A | Abstract: © 2019 American Physical Society. While long-theorized, the direct observation of multiple highly dispersive C60 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 C60 on a novel substrate - the three… 
View PDF on arXiv
5 Citations

Figures from this paper

5 Citations

High sensitive gas sensor based on vertical graphene field effect transistor

TLDR
A gas sensor made from graphene vertical field effect transistor (VGr-FET) has been fabricated by using graphene as source electrode, C60 thin film as semiconductor layer and aluminum thinFilm as drain electrode and shows promise for early diagnose of severe human respiratory diseases.

Molecular Semiconductors for Logic Operations: Dead‐End or Bright Future?

TLDR
This critical review addresses the community of chemists and materials scientists to share with it a critical analysis of the best performing molecular semiconductors and of the inherent charge transport physics that takes place in them.

Imaging the Dynamics of Charge Transfer and Frenkel Excitons in Molecular Thin Films

Using time- and momentum-resolved photoemission, we investigated the formation and ultrafast relaxation process of excitons in molecular materials. We uncovered stepwise transitions between charge…

Signatures of an atomic crystal in the band structure of a C60 thin film

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…

Plane-wave final state for photoemission from nonplanar molecules at a metal-organic interface

References

SHOWING 1-10 OF 38 REFERENCES

Band dispersion in C60(111): An angle-resolved photoemission study.

Angle-resolved photoemission studies of single-crystal C[sub 60](111) films grown on GeS(001) reveal changes in valence feature line shape with emission angle and photon energy that are indicative of…

Electronic structure of single crystal C60

Dependence of the band structure of C60 monolayers on molecular orientations and doping observed by angle resolved photoemission

Electronic properties of K-doped C60(111): Photoemission and electron correlation.

High-resolution photoemission provides the signatures of K 3 C 60 (111), K 4 C 60 , K 6 C 60 , and the dilute solid solution of K in C 60 (111), showing the effects of electron-electron correlation…

Electron excitation energies in fullerites: Many-electron and molecular orientational effects

Evidence for bandlike dispersion in K6C60(110) films

110 films at 40 K survive inspite of the strong electron-phonon coupling expected in fullerides that should give rise to polaron formation.The momentum dependence and the total bandwidth of the…

Growth mode and electronic structure of the epitaxial C60(111)/GeS(001) interface.

TLDR
The characteristic spectral features of ${\mathrm{C}}_{60}$ observed in the UPS spectra for bulk fullerite are slightly broadened and shifted to lower binding energies at submonolayer coverages and show no direct evidence for significant hybridization, indicating that the £C-substrate interaction is mainly dominated by van der Waals bonding.

Band Structure and Fermi Surface of Electron-Doped C60 Monolayers

C60 fullerides are challenging systems because both the electron-phonon and electron-electron interactions are large on the energy scale of the expected narrow band width. We report angle-resolved…

Experimental evidence for 400-meV valence-band dispersion in solid C60.

TLDR
It is demonstrated that at the low photon energy of ħω=8.1 eV the k∥ resolution becomes sufficient to resolve two bands in the feature derived from the highest-occupied molecular orbital which show a dispersion of the order of 400 meV.

Angle-dependent oscillations in valence-band photoemission intensity of C60

High-resolution angle-resolved photoelectron spectroscopy (ARPES) has been performed to investigate valence-band photoemission in C60 single crystals, which were cleaved in ultra-high-vacuum systems.…