Dynamic triggering of a spin-transition by a pulsed magnetic field |
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| Authors: | A. Bousseksou N. Negre M. Goiran L. Salmon J.-P. Tuchagues M.-L. Boillot K. Boukheddaden F. Varret |
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| Affiliation: | (1) Laboratoire de Chimie de Coordination du CNRS, 31077 Toulouse Cedex, France, FR;(2) Service National des Champs Magnétiques Pulsés, 31077 Toulouse Cedex, France, FR;(3) Laboratoire de Chimie Inorganique, CNRS-Université Paris-Sud, 95405 Orsay Cedex, France, FR;(4) Laboratoire de Magnétisme et Optique, CNRS-Université de Versailles, 78035 Versailles Cedex, France, FR |
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| Abstract: | 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. Received 23 February 1999 and Received in final form 8 June 1999 |
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| Keywords: | 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 |
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