@article{b6fa24ea3904493c89a82c82861f83e3,
title = "Atomic arrangements of quasicrystal bilayer graphene: Interlayer distance expansion",
abstract = "Bilayer graphene exhibits outstanding characteristics that can be modified by adjusting the twist angle between two layers. An exact 30°-twisted bilayer graphene forms a material comprising two-dimensional quasicrystals accompanied by a relativistic Dirac fermion. In this study, the atomic arrangements of quasicrystal bilayer graphene on a SiC(0001) substrate are identified using positron diffraction. The interlayer distance in quasicrystal bilayer graphene is determined to be 3.46 {\AA}, revealing an expansion of 0.17 {\AA} as compared with that of Bernal-stacked bilayer graphene. This result provides important insights for elucidating the origin of the magnitude of coupling between graphene layers.",
author = "Yuki Fukaya and Yuhao Zhao and Kim, {Hyun Woo} and Ahn, {Joung Real} and Hirokazu Fukidome and Iwao Matsuda",
note = "Funding Information: We thank O. Sugino for the insightful discussions and I. Mochizuki and T. Hyodo for their experimental support. Y.F. acknowledges support from JSPS KAKENHI Grants No. JP18H01877 and No. JP19K22134, a research grant from the Murata Science Foundation, and the Toray Science Foundation. J.R.A was supported by a grant from the National Research Foundation (NRF) of Korea (2021M2E8A1048961). H.F. acknowledges the Strategic Information and Communications R&D Promotion Programme (SCOPE) from the Ministry of Internal Affairs and Communications of Japan, JSPS KAKENHI Grants No. JP19H02590 and No. JP16H06361, and the Murata Science Foundation. I.M. acknowledges JSPS KAKENHI Grants No. JP18H03874 and No. JP19H04398. This study was performed with the approval of the Photon Factory Program Advisory Committee of the Institute of Materials Structure Science (Proposal No. 2017G639). Publisher Copyright: {\textcopyright} 2021 American Physical Society.",
year = "2021",
month = nov,
day = "1",
doi = "10.1103/PhysRevB.104.L180202",
language = "English",
volume = "104",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "18",
}