周期性波纹石墨烯在 Ru(0001)上的π等离子体禁闭的证据。
Evidence of confinement of the π plasmon in periodically rippled graphene on Ru(0001).
机构信息
Dipartimento di Fisica, Università degli Studi della Calabria, 87036 Rende, Cs, Italy.
出版信息
Phys Chem Chem Phys. 2013 Jul 21;15(27):11356-61. doi: 10.1039/c3cp51954f. Epub 2013 Jun 4.
High-resolution electron energy loss spectroscopy has been used to study the electronic response of periodically rippled monolayer graphene grown on Ru(0001). A plasmonic mode, assigned to the π plasmon, has been observed at around 6 eV. The dispersion curve of this collective mode indicates plasmon confinement within the hills of the ripples. Moreover, we found that the corrugation of the graphene sheet also significantly affects the damping processes of the π plasmon.
高分辨率电子能量损失谱已被用于研究生长在 Ru(0001)上的周期性波纹单层石墨烯的电子响应。在大约 6 eV 处观察到了一个被分配给 π 等离子体的等离子体模式。这个集体模式的色散曲线表明等离子体在波纹的山丘内被限制。此外，我们还发现石墨烯片的波纹也会显著影响 π 等离子体的阻尼过程。
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