Anisotropic conductivity in a channel-structured superionic conductor: Li2Ti3O7

From measurements on single crystals of Li₂Ti₃O₇, the conductivity is determined to be predominately ionic with an anisotropy of $\text{σ}{}_{\mathrm{b}}\text{σ}{}_{\mathrm{a}}\text{≈4}$ and $\text{σ}{}_{\mathrm{c}}\text{σ}{}_{\mathrm{b}}\text{≈7}$. This anisotropy is significant but is not sufficient to classify this channel-structured ramsdellite material as a one-dimensional conductor. A conduction path through the ramsdellite crystal structure consistent with the determined anisotropy is presented.