Interplays between the Energy Parameters in New Thermoelectric and Energy Storage Materials

n this proposal we focus on investigate the interplay between magnetic and electric parameters in the new energy materials. The physical properties will be studied by inelastic neutron scattering, neutron diffraction, x-ray diffraction, resistivity, magnetic susceptibility, specific heat measurements. Special attention will be focus on the interplay between the electric polarization and magnetic polarization. Topics proposed to be studied include (1) thermoelectric material SnSe: by measuring the phonon dispersion, lifetime, paragation length for the origion of low thermal conductivity; (2) type-II multiferroic materials Co3TeO6: effects of development of antiferroelectricity on the magnon dispersion; (3) nano-sized Prussian Blue Analogue (PBA): development of Li+-PBA and Na+-PBA secondary battery and enhancing the electric cycleability by the proximity of magnetic Ni nanoparticles by PBA nanoparticles.