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.