Publication Date:
2003-04-12
Description:
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.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yang, W L -- Brouet, V -- Zhou, X J -- Choi, Hyoung J -- Louie, Steven G -- Cohen, Marvin L -- Kellar, S A -- Bogdanov, P V -- Lanzara, A -- Goldoni, A -- Parmigiani, F -- Hussain, Z -- Shen, Z-X -- New York, N.Y. -- Science. 2003 Apr 11;300(5617):303-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Advanced Light Source (ALS), Materials Science Division, Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12690192" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
