Twin-free monocrystals of Fe2Dy0.7Tb0.3 with a <111> orientation were grown by using the Czochralski method with a cold crucible. The use of various methods demonstrated the twin-free and monocrystalline nature of the crystals. Optimum growth parameters were found experimentally which avoided constitutional supercooling. A decanting method was used to provide direct evidence that unstable growth was the cause of dendrite growth in this material and had foiled previous attempts to grow <111> single crystals.

G.Wu, X.Zhao, J.Wang, J.Li, K.Jia, W.Zhan: Applied Physics Letters, 1995, 67[14], 2005-7