2 0 0 0 OA ダイヤモンドアンビルセルの超高圧発生技術:静的圧力発生限界への挑戦
- 著者
- 赤浜 裕一 川村 春樹
- 出版者
- 日本高圧力学会
- 雑誌
- 高圧力の科学と技術 (ISSN:0917639X)
- 巻号頁・発行日
- vol.19, no.4, pp.248-255, 2009 (Released:2009-12-02)
- 参考文献数
- 18
- 被引用文献数
- 5 5
Recently, we have succeeded to extend the attainable static pressure to 410 GPa using a diamond anvil cell (DAC). In this article, our recent advances in the ultra-high pressure generation technique of the DAC are reviewed, and the key factors for the high-pressure generation beyond 300 GPa were discussed. In addition, in such extremely high-pressures range, an optical pressure determination method and a direct observation method of the stress-state by the diamond anvil Raman spectroscopy have been presented.
1 0 0 0 OA 固体酸素の96GPaでの構造転移と金属化:分子金属の可能性
- 著者
- 赤浜 裕一 川村 春樹
- 出版者
- 日本高圧力学会
- 雑誌
- 高圧力の科学と技術 (ISSN:0917639X)
- 巻号頁・発行日
- vol.4, no.1, pp.22-27, 1995-02-20 (Released:2009-08-07)
- 参考文献数
- 18
- 被引用文献数
- 1
By using high-energy and high-brilliant synchrotron radiation source in ESRF and PF, an angle-dispersive powder x-ray diffraction study on oxygen has been carried out up to 117 GPa at room temperature. A new highpressure structural transition was observed at 96 GPa and explained as an isostructural one with a discontinuous change of lattice constants in a monoclinic cell. Metallization for oxygen reported by S. Desgreniers et al. [1] is ascribed to the transtion.