Elemental Semimetal Ferroelectricity in Buckled Carbon Monolayers: Implications for Flexible Field-Effect Transistors
Meng Zhou,
Jun Li,
Jia Li
et al.
Abstract:The discovery of ferroelectricity in elemental bismuth monolayer motivated us to look for elemental ferroelectricity in other monolayers. Based on two experimentally synthesized two-dimensional (2D) carbon structures, biphenylene and net-graphene, we used firstprinciples calculations to predict three carbon monolayers with a buckled phase: 4−6−12 biphenylene, 4−6−8−16 biphenylene-yne, and 4−6−7−5 net-graphene. The total energy of 4−6−7−5 netgraphene is −8.84 eV/atom, much lower than that of experimental biphen… Show more
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