Probing the Graphite Band Structure with Resonant Soft-X-Ray Fluorescence

J. A. Carlisle; Eric L. Shirley; E. A. Hudson; L. J. Terminello; T. A. Callcott; J. J. Jia; D. L. Ederer; R. C. C. Perera; F. J. Himpsel

doi:10.1103/PhysRevLett.74.1234

Probing the Graphite Band Structure with Resonant Soft-X-Ray Fluorescence

J. A. Carlisle, Eric L. Shirley, E. A. Hudson, L. J. Terminello, T. A. Callcott, J. J. Jia, D. L. Ederer, R. C. C. Perera, and F. J. Himpsel

Phys. Rev. Lett. 74, 1234 – Published 13 February 1995

Abstract

For incident photon energies near the core binding energy, inelastic x-ray scattering theory predicts a coherent absorption-emission process in which crystal momentum is conserved. Momentum conservation should manifest itself as dispersive features in fluorescence spectra. We report the detection of such features for the first time in graphite, and show that there exists a clear relationship between them and the graphite band structure. Our results demonstrate the potential of resonant soft-x-ray fluorescence for examining the momentum-resolved electronic structure of complex materials.

Received 7 July 1994

DOI:https://doi.org/10.1103/PhysRevLett.74.1234

Authors & Affiliations

J. A. Carlisle¹, Eric L. Shirley^1,*, E. A. Hudson¹, L. J. Terminello¹, T. A. Callcott², J. J. Jia², D. L. Ederer³, R. C. C. Perera⁴, and F. J. Himpsel⁵

¹Lawrence Livermore National Laboratory, Livermore, California 94551
²University of Tennessee, Knoxville, Tennessee 37996
³Tulane University, New Orleans, Louisiana 70118
⁴Lawrence Berkeley Laboratory, Berkeley, California 94720
⁵IBM Research Division, Thomas J. Watson Research Center, Yorktown Heights, New York 10598