Evidence of large spin-orbit coupling effects in quasi-free-standing graphene on Pb/Ir(1 1 1)

A combined scanning tunneling microscopy, angle- and spin-resolved photoemission spectroscopy and density functional theory study of graphene on Ir(1 1 1) intercalated with a well-ordered, full Pb monolayer is presented. Lead intercalation between graphene and Ir(1 1 1) reduces the coupling to the m...

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