[16p-W8E_307-1~11] 15.1 Bulk crystal growth

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[16p-W8E_307-8] B-H curve evaluation of Fe-Ga single crystals grown by vertical Bridgman method

〇Kiyoshi Izumi¹, Kota Jinno¹, Yuka Takahashi¹, Kento Kitabayashi¹, Ayumi Takamura², Shota Kita² (1.Sumitomo Metal Mining, 2.Kanazawa Univ.)

Keywords:

magnetostriction,vertical Bridgman,Fe-Ga

We have grown Fe-Ga magnetostrictive alloy single crystals that can be used for magnetostrictive vibration power generation for IoT (Internet of Things) using the vertical Bridgman (VB) method. Using these crystals, we developed a unique processing technique for Fe-Ga plates by surface grinding to stabilize the power output of vibration power generation devices. However, since it is unclear how much stress should be applied when designing devices, we evaluated the B-H curve under stress application and report the results.