Crystal Growth of La_2CuO_4 System by Top-Seeded Solution Growth Method

Abstract

Single crystals of La-M-Cu-O system (M=Ba, Sr) have been grown by the top-seeded solution growth (TSSG) method with CuO as the solvent. Crystals of approximately 18φ×4 mm in size were obtained. A crystallographic phase diagram for the La_2O_3-CuO system has been derived by means of differential thermal analysis, quenching technique and X-ray diffraction. Single crystal of LaSrFeO_4 has also been grown by the floating zone method, being used as an initial seed crystal.