Band structure and Fermi surface of electron-doped C60 monolayers

被引：98

作者：

Yang, WL

Brouet, V

Zhou, XJ

Choi, HJ

Louie, SG

Cohen, ML

Kellar, SA

Bogdanov, PV

Lanzara, A

Goldoni, A

Parmigiani, F

Hussain, Z

Shen, ZX ^{[1
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[4] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA

[5] Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA

[6] Univ Paris 11, Phys Solides Lab, CNRS, UMR8502, F-91405 Orsay, France

[7] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[8] Sincrotrone Trieste SCpA, I-34012 Trieste, Italy

[9] Univ Cattolica Sacro Cuore, Dipartimento Matemat & Fis, Ist Nazl Fis Mat, I-25121 Brescia, Italy

来源：

SCIENCE | 2003年 / 300卷 / 5617期

关键词：

D O I：

10.1126/science.1082174

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

C-60 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 C-60 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.

引用

页码：303 / 307

页数：5

共 31 条

[1] DETERMINATION OF THE ORIENTATION OF C-60 ADSORBED ON AU(111) AND AG(111) [J].