Single Crystal Growth of Strontium Ferrite with Magnetoplumbite Structure Using the Traveling Solvent Floating Zone Method

Abstract

We report single crystal growth of the strontium hexaferrite SrFe₁₂O₁₉ by the traveling solvent floating zone (TSFZ) method using self flux. After improving various conditions, such as preparation of feed rods, atmosphere and pressure during crystal growth, growing speed, and the flux, we successfully obtained large single crystals. The crystals have cylindrical shapes with 4–5 mm in diameter and 40–60 mm in length. They grew along a direction nearly perpendicular to the c axis. It was demonstrated that the TSFZ technique provides large single crystals of SrFe₁₂O₁₉ of good quality.