[S-MP36] 鉱物の物理化学

[SMP36-10] GHz ultrasonic velocity measurements of iron beyond the bcc-hcp transition

*米田 明¹、鶴岡 椋²、鎌田 誠司³、寺崎 英紀² (1.岡山大学惑星物質研究所、2.大阪大学理学研究科、3.東北大学学際科学フロンティア研究所)

キーワード：GHz超音波測定、鉄、高圧

We have been developing GHz ultrasonic measurement in DAC up to ~15 GP both for P and S waves. This project of measuring iron was started after the achievements of preliminary work on KCl and natural olivine up to ~15 GPa (Yoneda et al., JpGU2019). We would like to present (1) additional technical improvements recently, and (2) preliminary experimental results at around 1GPa.