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RESEARCH PRODUCT
Polyoxometalates in Langmuir–Blodgett films: toward new magnetic materials
Christophe MingotaudMiguel Clemente-leónCarlos J. Gómez-garcíaEugenio CoronadoPierre Delhaessubject
LangmuirChemistryMetals and AlloysSurfaces and InterfacesLangmuir–Blodgett filmSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCrystallographyParamagnetismAdsorptionX-ray crystallographyPolyoxometalateMonolayerMaterials ChemistryOrganic chemistryMoleculedescription
Abstract Polyoxometalates having various structures and properties can be organized by the Langmuir–Blodgett (LB) technique. The adsorption of such polyanions along a positively charged monolayer of DODA (dimethyldioctadecylammonium) induces large changes in the compression isotherm and enables the transfer of the Langmuir film onto solid substrate. X-ray diffraction and infrared dichroism experiments demonstrate that the polyoxometalates are organized in monolayers within the LB films. Furthermore, these magnetic multilayers were characterized by their paramagnetic susceptibility measured by a SQUID magnetometer.
year | journal | country | edition | language |
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1998-08-01 | Thin Solid Films |