Nonmetallic Gasket and Miniature Plastic Turnbuckle Diamond Anvil Cell for Pulsed Magnetic Field Studies at Cryogenic Temperatures

TL;DR

This paper introduces a nonmetallic, plastic diamond anvil cell and gasket designed for pulsed magnetic field experiments at cryogenic temperatures, reducing eddy current heating and Lorentz forces compared to metal cells.

Contribution

The development of a nonmetallic, plastic diamond anvil cell and gasket for pulsed magnetic field studies at cryogenic temperatures, enabling higher pressures without heating issues.

Findings

Achieved 3 GPa pressure in a plastic cell at 4 K.

Reduced eddy current heating and Lorentz forces in pulsed magnetic fields.

Developed a rotator and cryostat for fermiology studies.

Abstract

A plastic turnbuckle diamond anvil cell (DAC) and nonmetallic gasket have been developed for pulsed magnetic field studies to address issues of eddy current heating and Lorentz forces in metal cells. The plastic cell evolved from our 6.3 mm metal diameter turnbuckle DAC that was designed in 1993 to rotate in the 9 mm sample space of Quantum Design's MPMS. Attempts to use this metal DAC in pulsed magnetic fields caused the sample temperature to rise to T>70 K, necessitating the construction of a nonconductive cell and gasket. Pressures of 3 GPa have been produced in the plastic cell with 0.8 mm culets in an optical study conducted at T = 4 K. Variations of the cell are now being used for fermiology studies of metallic systems in pulsed magnetic fields that have required the development of a rotator and a special He-3 cryostat which are also discussed.