Development of a new Bridgman-type high-pressure cell by using built-in gasket up to 9.4 GPa and evaluation of deformation

A Hisada; S Hirota; K Magishi; N Fujiwara; Y Uwatoko

doi:10.1063/5.0231811

Development of a new Bridgman-type high-pressure cell by using built-in gasket up to 9.4 GPa and evaluation of deformation

Rev Sci Instrum. 2024 Dec 1;95(12):123905. doi: 10.1063/5.0231811.

Authors

A Hisada¹, S Hirota², K Magishi¹, N Fujiwara³, Y Uwatoko⁴

Affiliations

¹ Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
² Graduate School of Science and Technology for Innovation, Tokushima University, 2-1 Minamijosanjima, Tokushima 770-8506, Japan.
³ Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu, Sakyo-Ku, Kyoto 606-8501, Japan.
⁴ Institute for Solid State Physics, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan.

PMID: 39714198
DOI: 10.1063/5.0231811

Abstract

We have developed a built-in gasket for the Bridgman-type opposed-anvil high-pressure cell, featuring a PTFE (Teflon) capsule of ϕ 2.0 (1.5) × 2.5 mm3, filled with a liquid pressure-transmitting medium. This gasket, comprising a stainless-steel plane disk, a stainless-steel support ring, and pyrophyllite support gaskets, has enhanced the sample space height, allowed for precise adjustment of the anvil top area, and facilitated easy electrical insulation of lead wires. We calibrated the pressure by detecting phase transitions in Bi and Sn through resistivity measurements, achieving nearly hydrostatic pressure up to 9.4 GPa with this cell. Our analysis of the deformation of the gasket components under force has provided guidelines for effective pressurization.