Flux growth of Y2Cu2O5 single crystals

Single crystals of Y2Cu2O5 were grown from a Cu2O flux by a slow cooling method. One of the advantages of the present method is the use of a nonpoisonous flux instead of the conventionally used, relatively toxic, potassium flouride. The satisfactory quality of the single crystal form was confirmed by comparison of the lattice parameters and the Y/Cu ratio between the single crystal and the powdered sample.