Nature and mechanism of the photoinduced spin transition in [Fe(PM-BiA)2(NCS)2]

被引：54

作者：

Ichiyanagi, K

Hebert, J

Toupet, L

Cailleau, H

Guionneau, P

Létard, JF

Collet, E ^{[1
]}

机构：

[1] Univ Rennes 1, CNRS, UMR 6626, Grp Mat Condensee & Mat, F-35042 Rennes, France

[2] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

[3] KEK, Japan Sci & Technol Agcy, ERATO, Nonequilibrium Dynam Project, Tsukuba, Ibaraki 3050801, Japan

[4] Univ Bordeaux 1, CNRS, UPR 9048, Inst Chim Mat Condensee Bordeaux, F-33608 Pessac, France

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.73.060408

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the investigation of a prototype cooperative photoinduced spin transition in [Fe(PM-BiA)(2)(NCS)(2)] by x-ray diffraction. The structural rearrangement accompanying the change of an electronic state between the low spin and the photoinduced out-of-equilibrium high spin phases is similar to the one occurring around the phase transition at thermal equilibrium. The cooperative behavior of the light-induced optical hysteresis and light-induced thermal hysteresis phenomena investigated here show a strong similarity with thermal hysteresis around first-order phase transitions, since they are driven by a domain nucleation process.

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