Low-energy nonresonant x-ray scattering of C60

Paul Chow and Barry Friedman
Phys. Rev. B 77, 073406 – Published 25 February 2008

Abstract

Using a third generation synchrotron, the low-energy electronic structure of C60 was measured by nonresonant inelastic x-ray scattering. The cross section S(k,ω) at k=1.0Å1 reveals a significant peak at 2.1eV inaccessible to optical absorption due to selection rules but consistent with measurements done by nonlinear optics and electron energy-loss spectroscopy. The experiment was modeled by a Hubbard model for a single C60 molecule with Ut=4. This simple model captures the essential physics.

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  • Received 8 August 2007

DOI:https://doi.org/10.1103/PhysRevB.77.073406

©2008 American Physical Society

Authors & Affiliations

Paul Chow

  • HPCAT, Geophysical Laboratory, Carnegie Institution of Washington, Building 434E, 9700 South Cass Avenue, Argonne, Illinois 60439, USA

Barry Friedman

  • Physics Department, Sam Houston State University, Huntsville, Texas 77341-2267, USA

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Issue

Vol. 77, Iss. 7 — 15 February 2008

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