Citation: Hamao, N.; Kataoka, K.; Kijima, N.; Akimoto, J. (2016). Synthesis, crystal structure and conductive properties of garnet-type lithium ion conductor Al-free Li7-xLa3Zr2-xTaxO12 (0<=x<=0.6). Journal of the Ceramic Society of Japan, 124, pp. 678-683.