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

doi:10.1126/science.1082174

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

Department of Physics

Research output: Contribution to journal › Article › peer-review

99 Citations (Scopus)

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 language	English
Pages (from-to)	303-307
Number of pages	5
Journal	Science
Volume	300
Issue number	5617
DOIs	https://doi.org/10.1126/science.1082174
Publication status	Published - 2003 Apr 11

All Science Journal Classification (ASJC) codes

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10.1126/science.1082174

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title = "Band structure and fermi surface of electron-doped C60 monolayers",

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.",

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

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doi = "10.1126/science.1082174",

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T1 - Band structure and fermi surface of electron-doped C60 monolayers

AU - Yang, W. L.

AU - Brouet, V.

AU - Zhou, X. J.

AU - Choi, Hyoung J.

AU - Louie, Steven G.

AU - Cohen, Marvin L.

AU - Kellar, S. A.

AU - Bogdanov, P. V.

AU - Lanzara, A.

AU - Goldoni, A.

AU - Parmigiani, F.

AU - Hussain, Z.

AU - Shen, Z. X.

PY - 2003/4/11

Y1 - 2003/4/11

N2 - 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.

AB - 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.

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ER -

Band structure and fermi surface of electron-doped C₆₀ monolayers

Abstract

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