The Raman spectra of Sr1-xBaxNb2O6(SBN) and (K1-yNay)z (Sr1-xBax)l-zNb2O6 (KNSBN) crystals have been obtained and discussed based on the space group theory and lattice dynamics.

• 测得了Sr_(1-x)Ba_xNb_2O_6(SBN)和(K_(1-y)Na_y)_z(Sr_(1-x)Ba_x)_(l-z)Nb_2O_6(KNSBN)晶体的Raman谱；并用群论和晶格动力学观点进行了讨论.