Heterogeneous nucleation and growth dynamics in the light-induced phase transition in vanadium dioxide

Academic Article

Abstract

  • © 2016 IOP Publishing Ltd. We report on ultrafast optical investigations of the light-induced insulator-to-metal phase transition in vanadium dioxide with controlled disorder generated by substrate mismatch. These results reveal common dynamics of this optically-induced phase transition that are independent of this disorder. Above the fluence threshold for completing the transition to the rutile crystalline phase, we find a common time scale, independent of sample morphology, of 40.5 ± 2 ps that is consistent with nucleation and growth dynamics of the R phase from the parent M1 ground state.
  • Digital Object Identifier (doi)

    Author List

  • Brady NF; Appavoo K; Seo M; Nag J; Prasankumar RP; Haglund RF; Hilton DJ
  • Volume

  • 28
  • Issue

  • 12