[20p-D62-1~14] 15.1 Bulk crystal growth

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[20p-D62-3] Improvement of Fe-Ga single crystal growth conditions by vertical Bridgman method

〇Kiyoshi Izumi¹, Kazuki Tatsumiya¹, Masaaki Sato¹, Gen Fujii¹, Kota Jinno¹, Kazuhiko Okubo¹ (1.Sumitomo Metal Mining)

Keywords:

magnetostriction,vertical Bridgman,Fe-Ga

We have grown Fe-Ga magnetostrictive alloy single crystals in the shape of square prisms up to 2.6 inch square using the vertical Bridgman (VB) method. Using 2.6 inch square Fe-Ga single crystals, we have developed the processing method for Fe-Ga plates that can be used for magnetostrictive vibration power generators for IoT (Internet of Things). This time, we improved the crystal growth conditions for 2.6 inch square Fe-Ga crystals and succeeded in growing single crystals stably. We report on our approach.