Ultraviolet photoelectron spectra of mass-selected copper clusters: Evolution of the 3d band

Phys. Rev. Lett. 64, 1785 – Published 9 April 1990
O. Cheshnovsky, K. J. Taylor, J. Conceicao, and R. E. Smalley


Ultraviolet photoelectron spectra (UPS) have been measured for bare unsupported copper clusters in the 1–410 atom size range as mass selected from a supersonic, negatively charged, cluster ion beam. Using an F2 excimer laser at 7.9 eV, the UPS patterns display the evolution of the 3d band structure as a function of cluster size. Clusters larger than a few atoms were found to display an increasingly sharp feature at the onset of the 3d band similar to that seen for bulk copper UPS at low photon energies, suggesting that these larger clusters may already be crystalline.

DOI: http://dx.doi.org/10.1103/PhysRevLett.64.1785

  • Received 14 December 1989
  • Published in the issue dated 9 April 1990

© 1990 The American Physical Society

Authors & Affiliations

O. Cheshnovsky, K. J. Taylor, J. Conceicao, and R. E. Smalley

  • Department of Chemistry, Department of Physics, and Rice Quantum Institute, Rice University, Houston, Texas 77251

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