A NiCrAl pressure cell up to 4.6 GPa and its application to cuprate and pnictide superconductors

18th APS-SCCM; 24th AIRAPT

Fujiwara, Naoki^1 ; Uwatoko, Yoshiya^2 ; Matsumoto, Takehiko^3

Graduate School of Human and Environmental Studies, Kyoto University, Kyoto

606-8501, Japan^1

Institute for Solid State Physics, University of Tokyo, Chiba, Kashiwa

277-8581, Japan^2

National Institute for Material Science, Ibaragi, Tsukuba

305-0047, Japan^3

关键词: Cuprates;    Hybrid pressure cells;    Inner diameters;    ITS applications;    Piston cylinders;    Pnictides;    Pressure cell;    Steady loads;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/500/3/032008/pdf
DOI  :  10.1088/1742-6596/500/3/032008

来源: IOP

【 摘 要 】

A pressurizing trial was performed for a hybrid NiCrAl hybrid pressure cell and a pressure of 4.6 GPa was achieved under a steady load of 15.0 ton, which marks the highest pressure ever known for a piston-cylinder-type pressure cell. The pressure efficiency at 15.0 ton was 75% and the expansion of the inner diameter of the NiCrAl cylinder partially reached 5%. The pressure cell was applied to nuclear-magnetic-resonance experiments on cuprate and pnictide superconductors.