10.1021/acs.nanolett.7b00606.s001
Koichiro Ienaga
Koichiro
Ienaga
Takushi Iimori
Takushi
Iimori
Koichiro Yaji
Koichiro
Yaji
Toshio Miyamachi
Toshio
Miyamachi
Shuhei Nakashima
Shuhei
Nakashima
Yukio Takahashi
Yukio
Takahashi
Kohei Fukuma
Kohei
Fukuma
Shingo Hayashi
Shingo
Hayashi
Takashi Kajiwara
Takashi
Kajiwara
Anton Visikovskiy
Anton
Visikovskiy
Kazuhiko Mase
Kazuhiko
Mase
Kan Nakatsuji
Kan
Nakatsuji
Satoru Tanaka
Satoru
Tanaka
Fumio Komori
Fumio
Komori
Modulation of Electron–Phonon Coupling in One-Dimensionally
Nanorippled Graphene on a Macrofacet of 6H-SiC
American Chemical Society
2017
6 H-SiC substrate
out-of-plane phonon
substrate SiC
millimeter scale
ripple structure
6 H-SiC
6 H-SiC crystal
STM
angle-resolved photoelectron spectroscopy
surface graphene
graphene nanoribbons
macroscopic ARPES
replica bands
One-Dimensionally Nanorippled Graphene
one-dimensionally nanorippled graphene
interface carbon nanostructure
2017-05-18 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Modulation_of_Electron_Phonon_Coupling_in_One-Dimensionally_Nanorippled_Graphene_on_a_Macrofacet_of_6H-SiC/5032358
Local
electron–phonon coupling of a one-dimensionally nanorippled
graphene is studied on a SiC(0001) vicinal substrate. We have characterized
local atomic and electronic structures of a periodically nanorippled
graphene (3.4 nm period) prepared on a macrofacet of the 6H-SiC crystal
using scanning tunneling microscopy/spectroscopy (STM/STS) and angle-resolved
photoelectron spectroscopy (ARPES). The rippled graphene on the macrofacets
distributes homogeneously over the 6H-SiC substrate in a millimeter
scale, and thus replica bands are detected by the macroscopic ARPES.
The STM/STS results indicate the strength of electron–phonon
coupling to the out-of-plane phonon at the <i>K̅</i> points of graphene is periodically modified in accordance with the
ripple structure. We propose an interface carbon nanostructure with
graphene nanoribbons between the surface rippled graphene and the
substrate SiC that periodically modifies the electron–phonon
coupling in the surface graphene.