Growth and Faraday rotation characteristics of Tb 2 Sn2O7 crystal.

Abstract: Tb2Sn2O7 (TSO) single crystals have been grown by the top-seeded solution growth (TSSG) method using a Na2B4O7–NaF mixture as the flux. In this paper, the morphology of as-grown TSO crystals is briefly described and the valences of terbium and tin in crystal were analyzed by X-ray photoelectron spectroscopy. The transmission spectrum was measured in the wavelength range of 400–1600nm at room temperature and the Faraday rotation of a TSO crystal was investigated at 532, 633 and 1064nm wavelengths by the extinction method. Results show that TSO crystals exhibit typical paramagnetism when the temperature is above 2K and have a larger Verdet constant than that reported for TGG. [Copyright &y& Elsevier]