stanene
nounEtymology Blend of stannum + graphene (stannum + -ene) from Latin stannum (“tin”) and graphene, due to the analogous situation of tin in the material to carbon in graphene, being a two-dimensional layer one-atom thick.
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Chemistry, Inorganic chemistry, Natural sciences, Physical sciences a two-dimensional layer of tin one-atom thick, which is a topological insulator (conducting electricity only along its edges).