MOLECULAR MAGNETS V(TETRACYANOETHYLENE)X-CENTER-DOT-Y(SOLVENT) - APPLICATIONS TO MAGNETIC SHIELDING

The specific advantages and limitations of a new class of polymer base d magnets [exemplified by V(TCNE)x.y(solvent) (TCNE=tetracyanoethylene )] for static and low frequency magnetic shielding and inductive appli cations are evaluated using results of dc superconducting quantum inte rference device magnetization and ac permeability measurements. Presen t materials have very low density (rho approximately 1 g/cm3), relativ ely high resistivity (approximately 10(4) OMEGA cm), and low power los s (as low as approximately 2 erg cm-3 cycle-1). The highest initial ro om temperature permeability observed to date (for solvent = CH2Cl2) of mu(i) = 13 is modest for practical applications. Flexible processing methods are suggested for optimization of magnetic properties importan t for shielding applications.