Cooperative elastic switching vs. laser heating in [Fe(phen)2(NCS)2] spin-crossover crystals excited by a laser pulse.
CrystEngComm
; 18(38): 7269-7275, 2016 Oct 14.
Article
en En
| MEDLINE
| ID: mdl-28127256
ABSTRACT
Spin-crossover crystals show multi-step responses to femtosecond light excitation. The local molecular photo-switching from low to high spin states occurs on sub-picosecond timescale. It is followed by additional conversion due to elastic (ns) and thermal (µs) effects. In [Fe(phen)2(NCS)2] crystals discussed herein, the thermal switching can be made unobtrusive for the investigation of cooperative elastic switching. We evidence a cooperative transformation induced by lattice expansion through elastic coupling between molecules in the crystal, where up to 3 molecules are transformed per photon.
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Colección:
01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
CrystEngComm
Año:
2016
Tipo del documento:
Article
País de afiliación:
Francia