期刊
PHYSICAL REVIEW B
卷 81, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.81.041403
关键词
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资金
- Lundbeck foundation
- Danish National Research Council
- University of Trieste
The electron-phonon coupling in potassium-doped graphene on Ir(111) is studied via the renormalization of the pi* band near the Fermi level, using angle-resolved photoemission spectroscopy. The renormalization is found to be fairly weak and almost isotropic, with a mass enhancement parameter of lambda = 0.28(6) for both the (K) over bar-(M) over bar and the (K) over bar-(Gamma) over bar direction. These results are found to agree well with recent first-principles calculations.
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