A dataset of growth, defects, mechanical, and optical properties of transparent KTaO3 single crystal

However, growing large size and uniform crystals still remain a challenge. In this paper, a promising approach for growing relatively large size and high-quality KT single crystal was explored, and a transparent KT single crystal, weighing as much as 406 g, was grown by Czochralski method successfully.

The X-ray rocking curves (XRCs) imply that the KT crystal possesses high crystalline quality. A comprehensive investigation of its mechanical, thermal, and optical properties was carried out. The Mohr’s hardness is obtained to be 6.0, indicating that the KT is more conducive to being processed compared with diamond.