Study of the fast photoswitching of spin crossover nanoparticles outside and inside their thermal hysteresis loop
Language
en
Article de revue
This item was published in
Applied Physics Letters. 2013-02-11, vol. 102, n° 6, p. 063302 (1-4)
American Institute of Physics
English Abstract
We have studied the low spin to high spin phase transition induced by nanosecond laser pulses outside and within the thermal hysteresis loop of the [Fe(Htrz)2 trz](BF4)2-H2O spin crossover nanoparticles. We demonstrate ...Read more >
We have studied the low spin to high spin phase transition induced by nanosecond laser pulses outside and within the thermal hysteresis loop of the [Fe(Htrz)2 trz](BF4)2-H2O spin crossover nanoparticles. We demonstrate that, whatever the temperature of the compound, the photo-switching is achieved in less than 12.5 ns. Outside the hysteresis loop, the photo-induced high spin state remains up to 100 μs and then relaxes. Within the thermal hysteresis loop, the photo-induced high spin state remains as long as the temperature of the sample is kept within the thermal loop. A Raman study indicates that the photo-switching can be completed using single laser pulse excitation.Read less <
ANR Project
/ - ANR-09-BLAN-0212
Vers une génération de Gel-Coats Intelligents : thermo- et/ou photosensibles - ANR-11-RMNP-0019
Vers une génération de Gel-Coats Intelligents : thermo- et/ou photosensibles - ANR-11-RMNP-0019
Origin
Hal imported