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Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal

Published inJournal de physique. Lettres, vol. 77, no. 3, 30007
Publication date2007
Abstract

We present novel insight on like-spin domains (LSD) in cooperative spin transition solids by following the photo-transformation and the subsequent relaxation of a [ Fe(ptz)6] (BF4)2 single crystal in the vicinity of the light-induced instability. Self-organization under light is observed, accompanied by Barkhausen-like noise and jumps which reveal the presence of elastic interactions between LSDs. The light-induced phase separation process is discussed in terms of a dynamic potential providing spinodal instability in the corresponding temperature range. This useful concept is applicable to all types of switchable molecular solids.

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Citation (ISO format)
VARRET, F. et al. Light-induced phase separation in the [Fe(ptz)6](BF4)2 spin-crossover single crystal. In: Journal de physique. Lettres, 2007, vol. 77, n° 3, p. 30007. doi: 10.1209/0295-5075/77/30007
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Journal ISSN0302-072X
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