Fabrication of a Miniature Cubic-Anvil Pressure Cell and Evaluation of the Hydrostaticity

Fujiwara Naoki, Uwatoko Yoshiya

doi:10.11316/butsuri.76.5_295

Bibliographic Information

Other Title

小型キュービックアンビル圧力セルの開発と静水圧性の評価
コガタキュービックアンビルアツリョクセルノカイハツトセイスイアツセイノヒョウカ

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Description

<p>A miniature cubic-anvil pressure cell having an outer diameter of 60 mm, the smallest cubic-anvil cell to date, was fabricated to insert in a large-bore superconducting magnet. The pressure cell has a sample space of ϕ2.5×1.5 mm, which is fairly large for a pressure cell that can reach a high pressure above 4 GPa. Pressure homogeneity was monitored from the ⁶³Cu nuclear-quadrupole-resonance linewidth of Cu₂O up to 6.7 GPa. The linewidth first increased with increasing pressure up to 4 GPa and then saturated above 4 GPa. The pressure homogeneity was better than that of a piston–cylinder pressure cell. This newly developed pressure cell is advantageous because a large sample space and high pressure homogeneity are secured even at high pressures.</p>

Journal

Butsuri

Butsuri 76 (5), 295-301, 2021-05-05

The Physical Society of Japan