Extreme pressures and high magnetic fields can affect materials in profound and fascinating ways. However, large pressures and fields are often mutually incompatible; the rapidly changing fields provided by pulsed magnets induce eddy currents in the metallic components used in conventional pressure cells, causing serious heating, forces and vibration. Here we report a diamond-anvil-cell made mainly out of insulating composites that minimizes inductive heating while retaining sufficient strength to apply pressures of up to 9 GPa. Any residual metallic components are made of low-conductivity metals and patterned to reduce eddy currents. The simple design enables rapid sample or pressure changes, desired by pulsed-magnetic-field-facility users. The pressure cell has been used in pulsed magnetic fields of up to 65 T with no noticeable heating at cryogenic temperatures. Several measurement techniques are possible inside the cell at temperatures as low as 500 mK.
Cite
@article{arxiv.2008.07619,
title = {Composite Pressure Cell for Pulsed Magnets},
author = {Dan Sun and Martin F. Naud and Doan N Nguyen and Jonathan B Betts and John Singleton and Fedor F Balakirev},
journal= {arXiv preprint arXiv:2008.07619},
year = {2021}
}