Graphite morphs into hexagonal diamond in picoseconds

In new experiments, Lawrence Livermore National Laboratory (LLNL) scientists have emulated the conditions of Lonsdaleite, a diamond formation, using picosecond time scale laser compression and observed the transition with state-of -the-art materials characterization using femtosecond x-ray pulses. This graphite-diamond phase transition is of particular interest for fundamental reasons and a wide range of applications.