Top-seeded solution crystal growth of noncentrosymmetric and polar Zn2TeMoO7 (ZTM)

• Zn2TeMo2O7 crystals were grown by top-seeded solution growth (TSSG) method.
• The morphology of the single crystals is controllable by changing rotation speed.
• Optical transmission spectra indicate Zn2TeMo2O7 has a broad transmission range.
• Refractive index along optical axes was measured at different wavelengths.

A top-seeded solution growth (TSSG) method was used to grow large, centimeter size, crystals of Zn2TeMoO7 (ZTM) – a noncentrosymmetric and polar material. A TeO2–MoO3 mixture in combination with the parent compound was used as a flux. The morphologies of the crystals can be controlled by different rotation speeds. Optical spectra indicate that ZTM is transparent up to 5.25 µm with a UV absorption edge of 300 nm. In addition, the refractive index along the optical x, y, and z axes was measured at different wavelengths.

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