Glass-like thermal conductivity of Nd2/3−xLi3xTiO3 bulk ceramics with nanochessboard superlattice structure

We report the thermal conductivity of bulk Nd2/3−xLi3xTiO3 (0.047

► Bulk ceramics Nd2/3−xLi3xTiO3 with nanochessboard superlattice structure was prepared by pressureless sintering.
► Pretty low thermal conductivities (1–2 W/(mK)) is shown.
► The low thermal conductivity is temperature-independent.
► A shorter periodic length of the superlattice structure leads to a lower thermal conductivity.