https://doi.org/10.1007/s100510050057
Dynamic triggering of a spin-transition by a pulsed magnetic field*
1
Laboratoire de Chimie de Coordination du CNRS (UPR 8241) ,
31077 Toulouse Cedex, France
2
Service National des Champs Magnétiques Pulsés (CNRS-UPS-INSA) ,
31077 Toulouse Cedex, France
3
Laboratoire de Chimie Inorganique, CNRS-Université Paris-Sud (URA 420) ,
95405 Orsay Cedex, France
4
Laboratoire de Magnétisme et Optique, CNRS-Université de Versailles (UMR 8634) ,
78035 Versailles Cedex, France
Received:
23
February
1999
Revised:
8
June
1999
Published online: 18 October 2012
We report the first study of the effect of a high pulsed magnetic field on a spin transition complex in the solid state. The high spin fraction was determined by optical reflectivity. Sizeable effects are observed for the well-known spin transition solid Fe(Phen)2(NCS)2. In the hysteresis loop temperature range, an increase in the HS fraction is obtained, with an irreversible (reversible) character in the ascending (descending) branch of the loop. The time dependence of the HS fraction provides information on the kinetics of the spin-crossover process at the spin transition.
PACS: 64.60.My – Metastable phases / 64.60.Qb – Nucleation / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 64.60.-i – General studies of phase transitions / 74.25.Bt – Thermodynamic properties
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000
