This new compound was prepared by means of solid-state reaction. Its crystal structure, phase transitions and transport properties were studied by using X-ray diffraction, Raman spectroscopic, and other methods. It was found that the direct-current conductivities of Ag ions attained values of about 0.001S/cm at room temperature. The transference numbers of the Ag ions were close to unity.

H.Wada, M.Ishii, M.Onoda, M.Tansho, A.Sato: Solid State Ionics, 1996, 86-88[1], 159-63