Structural and thermal properties of the monoclinic Lu₂SiO₅ single crystal: evaluation as a new laser matrix

The novel laser matrix Lu₂SiO₅ (LSO) presents a structure consisting of two interpenetrating frameworks, Lu1O₆ and Lu2O₇. The material shows a maximum thermal expansion of 10.1105 × 10⁻⁶ K and thermal conductivity of 3.67 W m⁻¹ K⁻¹ at 303.15 K, while exhibiting relatively large anisotropic thermal properties.