Spectroscopic Characterization of BA(MG_1/3TA_2/3)O₃ Dielectrics for the Application to Microwave Communication

The lattice vibrational modes of the Ba(Mg1/3Ta2/3)O-3 materials, possessing dielectric constants K = 22.2 - 25.5 and quality factor Q x f = 182, 600 - 248, 000 GHz, were characterized by Raman and FTIR spectroscopies. The high-Q materials possess sharpest vibrational modes, viz., smallest full-width-at-half-maximum (FWHM) value for Raman peaks and smallest damping coefficient gamma j value for FTIR peaks and vice versa.