Platinum Containers for the Growth of Single Crystal Oxides

The growth of single crystal oxides for optical and magnetic purposes is commonly carried out using platinum containers. Modifications to container design have been important factors in improving growth conditions. A new composite three-layer crucible has been fabricated in platinum and iridium for growing crystals of sodium barium niobate, and a platinum container which can be drained of flux has been developed for growing rare earth iron garnets.