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

被引：43
作者：
Varret, F.
Boukheddaden, K.
Chong, C.
Goujon, A.
Gillon, B.
Jeftic, J.
Hauser, A.
机构：
[1] Univ Versailles, CNRS, Grp Etudes Mat Condensee Ex LMOV, F-78035 Versailles, France
[2] Ctr Etud Saclay, CNRS, CEA, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
[3] Ecole Natl Super Chim Rennes, CNRS, UMR 6052, F-35700 Rennes, France
[4] Univ Geneva, Dept Chim Phys, CH-1211 Geneva 4, Switzerland
来源：
EPL | 2007年 / 77卷 / 03期
关键词：
D O I：
10.1209/0295-5075/77/30007
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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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页数：6
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