Institut de Chimie Moléculaire et des Matériaux d'Orsay

Laboratoire de Chimie Inorganique - LCI

Magnetic and photomagnetic inorganic polymers

Anne Bleuzen


Coordination compounds exhibiting photo-induced electronic switching properties combining stability over successive cycles, short addressing time, full reversibility and chemical stability, offer promising perspectives for the elaboration of molecular memories and switching devices. Even though the photomagnetic effects exhibited by these compounds appear to have great potentials for technological applications, the low relaxation temperature of the metastable state and therefore the low working temperature strongly limit their use in practical applications.

We are involved in the fundamental study of one model family of compounds (synchrotron radiation studies, modelling of the switching properties…) in order to fully understand the origins of the switching properties, to control the relative levels of the states implied in the switching properties and to design switchable systems working at room temperature.


Recent publications :

Metal dilution effects on the swicthing properties of CoFe Prussian blue analogues
J. D. Cafun, L. Londinière, E. Rivière and A. Bleuzen. Inorganica Chimica Acta, 361, 12-13, 3555-3563, 2008.

Thermally-activated charge transfer in a Prussian blue derivative probed by resonant inelastic x-ray scattering
I. Jarrige, Y. Q. Cai, H. Ishii, N. Hiraoka, A. Bleuzen, Applied Physics Letters, 93, 054101, 2008.

 CoFe Prussian blue analogues under variable pressure : Evidence of departure from cubic symmetry. An X-ray diffraction and absorption study.
A. Bleuzen, J.-D. Cafun, A. Bachschmidt, M. Verdaguer, P. Münsch, F. Baudelet, J.-P. Itié, J. Phys. Chem. C, 112, 17709-17715, 2008.

Photomagnetism in Clusters and Extended Molecule-Based Magnets
A. Bleuzen, V. Marvaud, C. Mathonière, B. Sieklucka, M. Verdaguer, Inorg. Chem., 48, 3453-3466, 2009.

Optical and magnetic properties of the photo-induced state in the coordination network Na2Co4[Fe(CN)6]3,3*14H2O.
R. Le Bris, J.-D. Cafun, C. Mathonière*, A. Bleuzen, J.-F. Létard, New J. Chem., 33, 1255 – 1261, 2009.

Evidence for complex multistability in photomagnetic cobalt hexacyanoferrates from combined magnetic and synchrotron x-ray diffraction measurements.
I. Maurin, D. Chernyshov, F. Varret, A. Bleuzen, H. Tokoro, K. Hashimoto, S.-I. Ohkoshi, Phys. Rev. B 79, 064420, 2009.

 Photomagnetic CoFe Prussian blue Analogues :Role of the Cyanide ions as Active Electron Transfer Bridges Modulated by Cyanide-Alkali Metal ions Interactions.
J.-D. Cafun, G. Champion, M.-A. Arrio, C. Cartier dit Moulin, A. Bleuzen, J. Am. Chem. Soc., 132, 11552-11559, 2010.

 Chemical model of intermediate states implied in the switching properties of CoFe Prussian blue analogues: How a cell parameter lengthening can cause a crystal field parameter increase.
J.-D. Cafun, C. Cartier dit Moulin, G. Fornasieri, M.-A. Arrio, V. Briois, A. Bleuzen, New J. Chem., 35, 2074-2080, 2011.





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