Journal
PHYSICAL REVIEW B
Volume 80, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.073408
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Funding
- U.K. Engineering and Physical Sciences Research Council
- EPSRC [EP/H023836/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H023836/1] Funding Source: researchfish
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In situ high-pressure Raman spectroscopy is used to study monolayer, bilayer, and few-layer graphene samples supported on silicon in a diamond anvil cell to 3.5 GPa. The results show that monolayer graphene adheres to the silicon substrate under compressive stress. A clear trend in this behavior as a function of graphene sample thickness is observed. We also study unsupported graphene samples in a diamond anvil cell to 8 GPa and show that the properties of graphene under compression are intrinsically similar to graphite. Our results demonstrate the differing effects of uniaxial and biaxial strain on the electronic band structure.
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