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Home Search Quick Search Advanced Fulltext Browse Collections Persons My eDoc Session History Login Name: Password: Documentation Help Support Wiki Direct access to document ID:	Institute: Fritz-Haber-Institut     Collection: Theory     Display Documents   history ID: 446208.0, Fritz-Haber-Institut / Theory Angle-resolved photoemission study of the graphite intercalation compound KC8: A key to graphene Authors: Grüneis, A.; Attaccalite, C.; Rubio, Angel; Vyalikh, D. V.; Molodtsov, Sergeij L.; Fink, J.; Follath, R.; Eberhardt, W.; Büchner, B.; Pichler, T. Language: English Date of Publication (YYYY-MM-DD): 2009-08-27 Title of Journal: Physical Review B Journal Abbrev.: Phys. Rev. B Volume: 80 Issue / Number: 7 Start Page: 075431-1 End Page: 075431-5 Review Status: Peer-review Audience: Experts Only Abstract / Description: Electrons in isolated graphene layers are a two-dimensional gas of massless Dirac Fermions. In realistic devices, however, the electronic properties are modified by elastic deformations, interlayer coupling and substrate interaction. Here, we unravel the electronic structure of noninteracting, doped graphene layers by revisiting the stage one graphite intercalation compound KC8. To this end we apply angle-resolved photoemission spectroscopy and ab initio calculations. The full experimental dispersion is in excellent agreement with calculations of doped graphene once electron correlations are included at the GW level (Greens function G of the Coulomb interaction W). This highlights that KC8 has negligible interlayer coupling allowing us to access the full experimental Dirac cone. External Publication Status: published Document Type: Article Communicated by: Matthias Scheffler Affiliations: Fritz-Haber-Institut/Theory External Affiliations: Faculty of Physics, Vienna University, Strudlhofgasse 4, 1090 Wien, Austria IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany Nano-Bio Spectroscopy Group and ETSF Scientific Development Centre, Dpto. Física de Materiales, Universidad del País Vasco, Centro de Física de Materiales CSIC-UPV/EHU-MPC and DIPC, Av. Tolosa 72, E-20018 San Sebastián, Spain Institut für Festkörperphysik, TU Dresden, Mommsenstrasse 13, D-01069 Dresden, Germany Helmholtz-Zentrum Berlin, Albert-Einstein-Strasse 15, 12489 Berlin, Germany Identifiers: URL:http://dx.doi.org/10.1103/PhysRevB.80.075431 [only subscriber] Full Text: You have privileges to view the following file(s): Grueneis-PRB-80-075431-2009.pdf  [468,00 Kb]      The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.