Complete temperature study of the relaxation from HS to LS state in the mixed [FexZn1-x(Phen)2(NCS)2] systems (with x=1, 0.73, 0.5, 0.32, 0.19 and 0.04)

被引：15
作者：
Balde, Cherif [1 ]
Desplanches, Cedric [1 ]
Nguyen, Olivier [1 ]
Letard, Jean-Francois [1 ]
Freysz, Eric [2 ]
机构：
[1] Univ Bordeaux 1, CNRS, ICMCB, 87 Ave Dr A Schweitzer, F-33608 Pessac, France
[2] Univ Bordeaux, UMR 5798, Ctr Phys Mol Opt Hertzienne, Bordeaux, France
来源：
LXIII YAMADA CONFERENCE ON PHOTO-INDUCED PHASE TRANSITION AND COOPERATIVE PHENOMENA (PIPT3) | 2009年 / 148卷
关键词：
INDUCED SPIN TRANSITION; METAL DILUTION; CROSSOVER; HYSTERESIS;
D O I：
10.1088/1742-6596/148/1/012026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The thermal and light-induced spin transitions in [FexZn1-x(Phen)(2)(NCS)(2)] (Phen 1,10-phenantholine) have been investigated by magnetic susceptibility, photomagnetism and diffuse reflectivity measurements. These complexes display a thermal spin transition and undergo the light-induced excited spin state trapping (LIESST) effect at low temperatures. For each compound, the thermal spin transition temperature, T-1/2, and the relaxation temperature of the photo-induced high-spin state, T(LIESST), have been systematically determined. It appears that T-1/2 decreases with the metal dilution while T(LIESST) remains unchanged. This behaviour is discussed on the basis of the kinetic study performed by combining the use of SQUID magnetometer, up to the T(LIESST) value, and the dynamic diffuse reflectivity setup, from the T(LIESST) temperature up to the thermal spin transition.
引用
收藏
页数：9
相关论文
共 32 条
[1]   Effect of the metal dilution on the thermal and light-induced spin transition in [FexMn1-x(bpp)2](NCSe)2:: When T(LIESST) reaches T1/2 [J].
Balde, C. ;
Desplanches, C. ;
Guetlich, P. ;
Freysz, E. ;
Letard, J. F. .
INORGANICA CHIMICA ACTA, 2008, 361 (12-13) :3529-3533
[2]   Effect of metal dilution on the light-induced spin transition in [FexZn1-x(phen)2(NCS)2] (phen=1,10-phenanthroline) [J].
Balde, Cherif ;
Desplanches, Cedric ;
Wattiaux, Alain ;
Guionneau, Philippe ;
Guetlich, Philipp ;
Letard, Jean-Francois .
DALTON TRANSACTIONS, 2008, (20) :2702-2707
[3]   Influence of Metal Dilution on the Light-Induced Spin Transition in Two 1D Chain Compounds: [FexZn1-x(btzp)3](BF4)2 and [FexZn1-x(endi)3](BF4)2 {btzp=1,2-Bis(tetrazol-1-yl)propane and endi=1,2-Bis(tetrazol-1-yl)ethane} [J].
Balde, Cherif ;
Desplanches, Cedric ;
Grunert, Matthias ;
Wei, Yongli ;
Guetlich, Philipp ;
Letard, Jean-Francois .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2008, (34) :5382-5389
[4]   LIGHT-INDUCED EXCITED SPIN STATE TRAPPING IN A TRANSITION-METAL COMPLEX - THE HEXA-1-PROPYLTETRAZOLE-IRON (II) TETRAFLUOROBORATE SPIN-CROSSOVER SYSTEM [J].
DECURTINS, S ;
GUTLICH, P ;
KOHLER, CP ;
SPIERING, H ;
HAUSER, A .
CHEMICAL PHYSICS LETTERS, 1984, 105 (01) :1-4
[5]   NEW EXAMPLES OF LIGHT-INDUCED EXCITED SPIN STATE TRAPPING (LIESST) IN IRON(II) SPIN-CROSSOVER SYSTEMS [J].
DECURTINS, S ;
GUTLICH, P ;
KOHLER, CP ;
SPIERING, H .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1985, (07) :430-432
[6]   Complete temperature study of the relaxation from the high-spin state to low-spin state in a strongly cooperative spin crossover compound [J].
Degert, J ;
Lascoux, N ;
Montant, S ;
Létard, S ;
Freysz, E ;
Chastanet, G ;
Létard, JF .
CHEMICAL PHYSICS LETTERS, 2005, 415 (4-6) :206-210
[7]   Single laser pulse induces spin state transition within the hysteresis loop of an Iron compound [J].
Freysz, E ;
Montant, S ;
Létard, S ;
Létard, JF .
CHEMICAL PHYSICS LETTERS, 2004, 394 (4-6) :318-323
[8]   EFFECT OF METAL DILUTION ON THE SPIN-CROSSOVER BEHAVIOR IN [FEXM1-X(PHEN)2(NCS)2] (M = MN, CO, NI, ZN) [J].
GANGULI, P ;
GUTLICH, P ;
MULLER, EW .
INORGANIC CHEMISTRY, 1982, 21 (09) :3429-3433
[9]   Spin crossover -: An overall perspective [J].
Gütlich, P ;
Goodwin, HA .
SPIN CROSSOVER IN TRANSITION METAL COMPOUNDS I, 2004, 233 :1-47
[10]   Photoswitchable coordination compounds [J].
Gütlich, P ;
Garcia, Y ;
Woike, T .
COORDINATION CHEMISTRY REVIEWS, 2001, 219 :839-879
1234