Light-induced phase separation in the [Fe (ptz) 6](BF4) 2 spin-crossover single crystal
F Varret, K Boukheddaden, C Chong… - Europhysics …, 2007 - iopscience.iop.org
F Varret, K Boukheddaden, C Chong, A Goujon, B Gillon, J Jeftic, A Hauser
Europhysics Letters, 2007•iopscience.iop.orgWe 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](BF 4) 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 …
following the photo-transformation and the subsequent relaxation of a [Fe (ptz) 6](BF 4) 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 …
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](BF 4) 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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