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A New Analytical Method for Extracting Precise Structural Parameters of Epitaxial Graphene from Moire Patterns
Authors
Hyun Jin Yang
Hyunseob Lim
Yousoo Kim
Publication date
1 October 2018
Publisher
'Royal College of Obstetricians & Gynaecologists (RCOG)'
Abstract
A new analytical method to determine the most important two parameters, rotational angle (R theta) and strain (Delta a(Gr)/a(Gr)) of graphene on metal substrate, from scanning tunneling microscope images is presented. Epitaxial graphene on Ir(111) and Pt(111) was investigated by this method, which demonstrates that rotational angle and strain are not independent factors. Rather, these components influence each other to stabilize the graphene-metal interaction thermodynamically. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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Last time updated on 06/02/2020