Correlation satellite driven by reduced dimensionality

O. Rader, E. Vescovo, M. Wuttig, D. D. Sarma, S. Blügel, F. J. Himpsel, A. Kimura, K. S. An, T. Mizokawa, A. Fujimori, C. Carbone

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Photoelectron spectra of the ordered surface alloy c(2 × 2) CuMn/Cu(100) show distinct valence band spectral features at higher binding energy, which are most pronounced for the optimal CuMn c(2 × 2) superstructure at half-monolayer Mn deposition. Our analysis comprising resonant photoemission, core level photoemission, inverse photoemission, first-principles local-density calculations, and configuration-interaction cluster-model calculations shows that the data represent the first observation of a valence band satellite caused by the increased electron correlation in an ultrathin metal film.

Original languageEnglish
Pages (from-to)429-434
Number of pages6
JournalEurophysics Letters
Issue number4
Publication statusPublished - 1997 Aug 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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