Complete temperature study of the relaxation from HS to LS state in the mixed [Fe_xZn_{1-x}(Phen)_2(NCS)_2] systems (with x = 1, 0.73, 0.5, 0.32, 0.19 and 0.04)
Language
en
Communication dans un congrès
This item was published in
Journal of Physics: Conference Series, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 2008-11-11, Osaka. 2009-03-26, vol. 148, n° 1, p. 012026 (1-9)
IOP Science
English Abstract
The thermal and light-induced spin transitions in [FexZn1 x(Phen)2(NCS)2] (Phen = 1,10-phenantholine) have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These complexes ...Read more >
The thermal and light-induced spin transitions in [FexZn1 x(Phen)2(NCS)2] (Phen = 1,10-phenantholine) have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These complexes display a thermal spin transition and undergo the light-induced excited spin state trapping (LIESST) effect at low temperatures. For each compound, the thermal spin transition temperature, T1/2, and the relaxation temperature of the photo-induced high-spin state, T(LIESST), have been systematically determined. It appears that T1/2 decreases with the metal dilution while T(LIESST) remains unchanged. This behaviour is discussed on the basis of the kinetic study performed by combining the use of SQUID magnetometer, up to the T(LIESST) value, and the dynamic diffuse reflectivity setup, from the T(LIESST) temperature up to the thermal spin transition.Read less <
ANR Project
Transitions de phase photo-induites : vers la commutation ultra-rapide de matériaux moléculaires - ANR-05-BLAN-0045
Origin
Hal imported