TY - JOUR
T1 - Spacing between graphene and metal substrates studied with total-reflection high-energy positron diffraction
AU - Fukaya, Yuki
AU - Entani, Shiro
AU - Sakai, Seiji
AU - Mochizuki, Izumi
AU - Wada, Ken
AU - Hyodo, Toshio
AU - Shamoto, Shin Ichi
N1 - Funding Information:
This study was performed under the PF Proposal No. 2014S2-004 and the auspices of the JAEA-KEK Joint Development Research at the High Energy Accelerator Research Organization (KEK). This work was partly supported by a Grant-in-Aid for Scientific Research (S) 24221007 and for Young Scientists (B) 25800182 from JSPS.
Publisher Copyright:
© 2016 Elsevier Ltd. All rights reserved.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - The spacing between graphene and metal substrates has been investigated using total-reflection high-energy positron diffraction (TRHEPD). The rocking curve analysis performed, based on the dynamical diffraction theory, shows that the spacing between the graphene layer and a substrate of Cu(111) and that between graphene and a Co(0001) substrate are 3.34 Å and 2.06 Å, respectively. The former is close to the interlayer spacing in graphite, suggesting a weak interaction with the substrate material, whereas the latter value experimentally verifies that, in the case of graphene on Co(0001), there is a strong interaction with the substrate.
AB - The spacing between graphene and metal substrates has been investigated using total-reflection high-energy positron diffraction (TRHEPD). The rocking curve analysis performed, based on the dynamical diffraction theory, shows that the spacing between the graphene layer and a substrate of Cu(111) and that between graphene and a Co(0001) substrate are 3.34 Å and 2.06 Å, respectively. The former is close to the interlayer spacing in graphite, suggesting a weak interaction with the substrate material, whereas the latter value experimentally verifies that, in the case of graphene on Co(0001), there is a strong interaction with the substrate.
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U2 - 10.1016/j.carbon.2016.03.006
DO - 10.1016/j.carbon.2016.03.006
M3 - Article
AN - SCOPUS:84962783513
SN - 0008-6223
VL - 103
SP - 1
EP - 4
JO - Carbon
JF - Carbon
ER -