Pressure‐Induced sp ² ‐ sp ³ Transitions in Carbon‐Bearing Phases

Abstract

Carbon-bearing phases show a rich variety of structural transitions as an adaptation to pressure. Of particular interest is the crossover from sp 2 carbon to sp 3 carbon, as physical and chemical properties of carbon in these distinct electronic configurations are very different. In this chapter we review pressure-induced sp 2 -sp 3 transitions in elemental carbon, carbonates, and hydrocarbons.