Time-Domain Spectroscopy of Spin State Transition in Polymeric Spin Crossover compounds

B. Viquerat (1) , J. Degert (1) , M. Tondusson (1) , J. F. Letard (2) , C. Mauriac (2) , E. Freysz (1)

1 LOMA - Laboratoire Ondes et Matière d'Aquitaine
2 ICMCB - Institut de Chimie de la Matière Condensée de Bordeaux

We have measured the evolution of the THz spectrum of polymeric 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 evidence the large variations of both the refractive optical index and the absorption that occur during the spin state phase transition.

Mots clés: Compounds; Absorption; Hysteresis; Refractive index; Optical refraction; Modulation; Optical variables control

Domaines: Optique [physics.optics]

B. Viquerat, J. Degert, M. Tondusson, J. F. Letard, C. Mauriac, et al.. Time-Domain Spectroscopy of Spin State Transition in Polymeric Spin Crossover compounds. nfrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on, Oct 2011, Houston, TX, United States. ⟨10.1109/irmmw-THz.2011.6104784⟩. ⟨hal-01555374⟩