Abstract
A pyrochlore crystal with magneto-optical effect – Dy2Ti2O7 crystal with 19–20mm in diameter and 21mm in length has been grown by the Czochralski method. The lattice parameters were calculated by X-ray powder diffraction, which revealed that the crystal belongs to cubic system. Absorption spectrum was measured in the visible and near-infrared region at room temperature, which indicated the crystal has low absorption coefficient at 600–760nm. The specific Faraday rotation of single crystal was measured at room temperature in 532, 633, and 1064nm. The Verdet constant of Dy2Ti2O7 crystal at 633nm comes up to −183rad/(mT), which is as 1.4 times as that of TGG reported.
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