Journal
CHEMICAL PHYSICS LETTERS
Volume 394, Issue 4-6, Pages 318-323Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2004.07.017
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Within the thermal hysteresis loop of the [Fe(PM-BiA)(2)(NCS)(2)] compound, a single laser pulse of 14 mJ cm(-2) induces a photoconversion from the low spin (LS, S = 0) to the high spin (HS, S = 2) state of the Fe 21 metallic center. The temporal dynamic of this phenomena indicates that the system is firstly photo-excited into the HS state and then slowly relaxes to a mixture of HS/LS state. Subsequent laser pulses do not affect the HS/LS ratio. The system can be brought back to its initial LS state by adjusting the temperature of the compound. A simple model accounts qualitatively for the observed phenomenon. (C) 2004 Elsevier B.V. All rights reserved.
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