EPR properties of some new cadmium and rare-earth molybdates, molybdato-tungstates and their solid solutions

Highlights: ► Some new molybdato-tungstates of rare earths were synthesized and investigated. ► EPR and XRD of the obtained phases revealed scheelite-like structures. ► Rare-earths ions enter at axial symmetry sites convenient for phosphors or lasers. - Abstract: A reactivity in the solid state between CdMoO4 and RE2(MoO4)3 or RE2(WO4)3, where RE = Nd, Sm, Dy, was investigated using X-ray diffraction and electron paramagnetic resonance techniques. Obtained phases have shown scheelite-like structure, congruent melting and axial or close to axial symmetry of RE3+ ions. The main type of magnetic interactions in samples under studies is proved to be ferromagnetic one. Besides RE3+ ions, isolated and paired centers o molybdenum (5+) were found in the electron paramagnetic resonance spectra.