Heterogeneous nucleation and growth dynamics in the light-induced phase transition in vanadium dioxide.
J Phys Condens Matter
; 28(12): 125603, 2016 Mar 31.
Article
en En
| MEDLINE
| ID: mdl-26932975
ABSTRACT
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.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
J Phys Condens Matter
Asunto de la revista:
BIOFISICA
Año:
2016
Tipo del documento:
Article
País de afiliación:
Estados Unidos