Time-domain terahertz spectroscopy of spin state transition in [<em class="emphitalic">Fe</em>(<em class="emphitalic">NH</em><sub class="emphinferior">2</sub> − <em class="emphitalic">trz</em>)<sub class="emphinferior">3</sub>]<sup class="emphsuperior">2+</sup> spin crossover compounds
Langue
en
Article de revue
Ce document a été publié dans
Applied Physics Letters. 2011, vol. 99, n° 6, p. 061908 (3 p.)
American Institute of Physics
Résumé en anglais
We have measured the evolution of the THz spectrum of iron(II) spin crossover compounds within the low-spin/high-spin thermal hysteresis loop in the 0.6-6 THz frequency range. This study enabled to follow both the variations ...Lire la suite >
We have measured the evolution of the THz spectrum of iron(II) spin crossover compounds within the low-spin/high-spin thermal hysteresis loop in the 0.6-6 THz frequency range. This study enabled to follow both the variations of the refractive optical index and absorption during the spin state transition. Marked absorptions centered ∼2 - 3 THz and ∼5 THz shifting with the spin state are revealed. Our work provides a means to store optically information and to read it out in the THz domain and also offers indications about the structural evolution occurring during the spin state transition.< Réduire
Mots clés en anglais
High-speed optical techniques
Hysteresis
Iron compounds
Polymers
Refractive index
Visible spectra
Origine
Importé de halUnités de recherche