A high-quality tetragonal LiY(MoO4)2 single crystal was grown by a top-seeded solution growth method. Based on the quality evaluation, the optical transmission and thermal properties of the LiY(MoO4)2 single crystal were fully characterized.

A high-quality Y2Mo4O15 single crystal was grown by the top-seed solution growth method. The negative thermal expansion mechanism of the Y2Mo4O15 crystal has been explored and the space thermal expansion coefficient curve has been calculated.