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Bulk electronic structure of K3C60 as revealed by soft x-rays

Käämbre, Tanel LU ; Schiessling, Joachim LU ; Kjeldgaard, Lisbeth LU ; Qian, Limin; Marenne, Ingrid; O'Shea, James N.; Schnadt, Joachim LU ; Nordlund, Dennis; Glover, Chris J. and Rubensson, Jan-Erik, et al. (2007) In Physical Review B (Condensed Matter and Materials Physics) 75(19).
Abstract
We present C 1s x-ray absorption, x-ray emission, and resonant inelastic x-ray scattering (RIXS) spectra of single-phase crystalline K3C60. The comparison to valence-band photoelectron spectra from the same sample facilitates identification of the contribution from surface and bulk electronic states in the latter. Bulk-sensitive techniques show that the valence bands of K3C60 and pure C60 are characterized by spectral features of similar width, in agreement with the predictions of band-structure calculations. Symmetry selectivity in the RIXS process allows us to assign peaks in the C 1s absorption spectrum, demonstrating a close correspondence with pure C60 also in the conduction band. The symmetry selectivity is as pronounced in K3C60 as... (More)
We present C 1s x-ray absorption, x-ray emission, and resonant inelastic x-ray scattering (RIXS) spectra of single-phase crystalline K3C60. The comparison to valence-band photoelectron spectra from the same sample facilitates identification of the contribution from surface and bulk electronic states in the latter. Bulk-sensitive techniques show that the valence bands of K3C60 and pure C60 are characterized by spectral features of similar width, in agreement with the predictions of band-structure calculations. Symmetry selectivity in the RIXS process allows us to assign peaks in the C 1s absorption spectrum, demonstrating a close correspondence with pure C60 also in the conduction band. The symmetry selectivity is as pronounced in K3C60 as in pure C60, indicating that the local C60 symmetry is not appreciably affected by the K doping, either in the ground state or intermediate state, on the time scale of 6 fs. (Less)
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publication status
published
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Physical Review B (Condensed Matter and Materials Physics)
volume
75
issue
19
publisher
American Physical Society
external identifiers
  • wos:000246890800157
  • scopus:34347325168
ISSN
1098-0121
DOI
10.1103/PhysRevB.75.195432
language
English
LU publication?
yes
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c1ce43db-d92c-4676-9790-f8aed1c334b5 (old id 630949)
date added to LUP
2007-11-28 14:00:43
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2017-01-01 07:17:54
@article{c1ce43db-d92c-4676-9790-f8aed1c334b5,
  abstract     = {We present C 1s x-ray absorption, x-ray emission, and resonant inelastic x-ray scattering (RIXS) spectra of single-phase crystalline K3C60. The comparison to valence-band photoelectron spectra from the same sample facilitates identification of the contribution from surface and bulk electronic states in the latter. Bulk-sensitive techniques show that the valence bands of K3C60 and pure C60 are characterized by spectral features of similar width, in agreement with the predictions of band-structure calculations. Symmetry selectivity in the RIXS process allows us to assign peaks in the C 1s absorption spectrum, demonstrating a close correspondence with pure C60 also in the conduction band. The symmetry selectivity is as pronounced in K3C60 as in pure C60, indicating that the local C60 symmetry is not appreciably affected by the K doping, either in the ground state or intermediate state, on the time scale of 6 fs.},
  articleno    = {195432},
  author       = {Käämbre, Tanel and Schiessling, Joachim and Kjeldgaard, Lisbeth and Qian, Limin and Marenne, Ingrid and O'Shea, James N. and Schnadt, Joachim and Nordlund, Dennis and Glover, Chris J. and Rubensson, Jan-Erik and Rudolf, Petra and Mårtensson, Nils and Nordgren, Joseph and Brühwiler, Paul A.},
  issn         = {1098-0121},
  language     = {eng},
  number       = {19},
  publisher    = {American Physical Society},
  series       = {Physical Review B (Condensed Matter and Materials Physics)},
  title        = {Bulk electronic structure of K3C60 as revealed by soft x-rays},
  url          = {http://dx.doi.org/10.1103/PhysRevB.75.195432},
  volume       = {75},
  year         = {2007},
}