Single laser pulse induces spin state transition within the hysteresis loop of an Iron compound

被引：109

作者：

Freysz, E

Montant, S

Létard, S

Létard, JF

机构：

[1] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, Dept Phys, UMR 5798, F-33405 Talence, France

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

来源：

CHEMICAL PHYSICS LETTERS | 2004年 / 394卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2004.07.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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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页码：318 / 323

页数：6

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