Discriminating Crystal Binding from the Atomic Trapping of a Core Electron at Energy Levels Shifted by Surface Relaxation or Nanosolid Formation

Chang Qing Sun, Beng Kang Tay, Yong Qing Fu, Sean Li, Tu Pei Chen, H. L. Bai, E. Y. Jiang

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

On the basis of the atomic-coordination−atomic-radius correlation (Feibelman, P. J. Phys. Rev. B 1996, 53, 13740. Goldschmidt, V. M. Ber. Dtsch. Chem. Ges. 1927, 60, 1270.) and its perturbation of the Hamiltonian of an extended solid, we have developed an effective yet straightforward method to determine the core-level energies of an isolated atom and the crystal-binding intensities of the core electrons at energy levels shifted by bulk formation, surface relaxation, or nanosolid formation. The developed method not only allows the predicted size dependence of core-level shift to match observations but also enables conventional X-ray photoelectron spectroscopy (XPS) to provide comprehensive information about the behavior of electrons in the deeper shells of an isolated atom and the influence of crystal formation.
Original languageEnglish
Pages (from-to)411-414
JournalThe Journal of Physical Chemistry B
Volume107
Issue number2
DOIs
Publication statusPublished - 2003

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