Rate-dependent light-induced thermal hysteresis of [Fe(PM-BiA)2(NCS)2] spin transition complex

被引:21
作者
Enachescu, Cristian [1 ]
Tanasa, Radu
Stancu, Alexandru
Chastanet, Guillaume
Letard, Jean-Francois
Linares, Jorge
Varret, Francois
机构
[1] Alexandru Ioan Cuza Univ, Dept Solid State & Theoret Phys, Iasi 700506, Romania
[2] Univ Bordeaux 1, Inst Chim Mat Condensee Bordeaux, Grp Sci Mol, CNRS,UPR 9048, F-33608 Pessac, France
[3] Univ Versailles, Lab Magnetisme & Opt, CNRS, UMR 8634, F-78035 Versailles, France
关键词
D O I
10.1063/1.2167059
中图分类号
O59 [应用物理学];
学科分类号
摘要
The light-induced bistability under permanent irradiation (LITH: light-induced thermal hysteresis), due to the competition between light irradiation and self-accelerated relaxation, shows crucially rate-dependent hysteresis. Major and minor hysteresis loops for [Fe(PM-BiA)(2)(NCS)(2)] spin crossover compound have been measured. Using appropriate master equations, distribution data from the first-order reversal curves diagrams of the purely thermal hysteresis, and parameter values previously derived from relaxation curves, we could simulate the LITH experimental data. The tunneling contribution to the relaxation rate revealed to be a key factor for the final agreement. (C) 2006 American Institute of Physics.
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页数:3
相关论文
共 17 条
[1]   Thermal hysteresis loops in spin-crossover compounds analyzed in terms of classical Preisach model [J].
Constant-Machado, H ;
Stancu, A ;
Linares, J ;
Varret, F .
IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (04) :2213-2219
[2]  
Decurtins S., 1984, CHEM PHYS LETT, V139, P1
[3]   Light-induced bistability in spin transition solids leading to thermal and optical hysteresis [J].
Desaix, A ;
Roubeau, O ;
Jeftic, J ;
Haasnoot, JG ;
Boukheddaden, K ;
Codjovi, E ;
Linarès, J ;
Noguès, M ;
Varret, F .
EUROPEAN PHYSICAL JOURNAL B, 1998, 6 (02) :183-193
[4]   First-order reversal curves analysis of rate-dependent hysteresis: The example of light-induced thermal hysteresis in a spin-crossover solid [J].
Enachescu, C ;
Tanasa, R ;
Stancu, A ;
Varret, F ;
Linares, J ;
Codjovi, E .
PHYSICAL REVIEW B, 2005, 72 (05)
[5]   Kinetic hysteresis in spin crossover solids analyzed using FORC diagrams [J].
Enachescu, C ;
Tanasa, R ;
Stancu, A ;
Varret, F ;
Linares, J ;
Codjovi, E .
PHYSICA B-CONDENSED MATTER, 2006, 372 (1-2) :211-214
[6]   FORC method applied to the thermal hysteresis of spin transition solids: first approach of static and kinetic properties [J].
Enachescu, C ;
Tanasa, R ;
Stancu, A ;
Codjovi, E ;
Linares, J ;
Varret, F .
PHYSICA B-CONDENSED MATTER, 2004, 343 (1-4) :15-19
[7]   Nonexponential relaxation of the metastable state of the spin-crossover system [Fe(L)2](ClO4)2•H2O [L=2,6-bis(pyrazol-1-ylmethyl)pyridine] [J].
Enachescu, C ;
Linares, J ;
Varret, F ;
Boukheddaden, K ;
Codjovi, E ;
Salunke, SG ;
Mukherjee, R .
INORGANIC CHEMISTRY, 2004, 43 (16) :4880-4888
[8]   Photoexcitation in the spin-crossover compound [Fe(pic)3]Cl2•EtOH (pic=2-picolylamine) [J].
Enachescu, C ;
Oetliker, U ;
Hauser, A .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (37) :9540-9545
[9]   Static and light induced hysteresis in spin-crossover compounds: experimental data and application of Preisach-type models [J].
Enachescu, C ;
Machado, HC ;
Menendez, N ;
Codjovi, E ;
Linares, J ;
Varret, F ;
Stancu, A .
PHYSICA B-CONDENSED MATTER, 2001, 306 (1-4) :155-160
[10]   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