Band structure and fermi surface of electron-doped C60 monolayers

W. L. Yang, V. Brouet, X. J. Zhou, Hyoung J. Choi, Steven G. Louie, Marvin L. Cohen, S. A. Kellar, P. V. Bogdanov, A. Lanzara, A. Goldoni, F. Parmigiani, Z. Hussain, Z. X. Shen

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Abstract

C60, fullerides are challenging systems because both the electron-phonon and electron-electron interactions are large on the energy scale of the expected narrow band width. We report angle-resolved photoemission data on the band dispersion for an alkali-doped C60 monolayer and a detailed comparison with theory. Compared to the maximum bare theoretical band width of 170 meV, the observed 100-meV dispersion is within the range of renormalization by electron-phonon coupling. This dispersion is only a fraction of the integrated peak width, revealing the importance of many-body effects. Additionally, measurements on the Fermi surface indicate the robustness of the Luttinger theorem even for materials with strong interactions.

Original languageEnglish
Pages (from-to)303-307
Number of pages5
JournalScience
Volume300
Issue number5617
DOIs
Publication statusPublished - 2003 Apr 11

All Science Journal Classification (ASJC) codes

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    Yang, W. L., Brouet, V., Zhou, X. J., Choi, H. J., Louie, S. G., Cohen, M. L., Kellar, S. A., Bogdanov, P. V., Lanzara, A., Goldoni, A., Parmigiani, F., Hussain, Z., & Shen, Z. X. (2003). Band structure and fermi surface of electron-doped C60 monolayers. Science, 300(5617), 303-307. https://doi.org/10.1126/science.1082174