Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session L40: Substrate Effects on Monolayers
11:15 AM–2:03 PM,
Wednesday, March 7, 2018
LACC Room: 501C
Sponsoring Unit: DCMP
Chair: Enrique Cobas, Naval Research Lab
Abstract: L40.00012 : Extremely flat band in bilayer graphene on silicon carbide*
1:27 PM–1:39 PM
( , TU Chemnitz)
Frequent reports of superconductivity in graphite at elevated temperatures even above 300 K demand an explanation. It has been suggested that this is an effect of flat band formation at graphite surfaces and/or interfaces. In the present work we discover by angle-resolved photoemission that bilayer graphene on SiC shows an extremely flat band. We demonstrate that the band extends two-dimensionally around the K point and present a general model for flat band formation in bilayer graphene and related systems.
*This work was supported by SPP 1459 of DFG.
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