A new pulse-magnetic field diamond anvil cell*

Measurements in extreme conditions provide valuable insight into material properties.Combining high magnetic field, high pressure, and cryogenics allows for smooth tuning of parameters in a 3-dimensional phase space.The highest magnetic fields are generated using pulse-field magnets and provide more than twice the maximum field compared to direct-current magnets, 100 T vs 45 T. However, pulse fields invariably generate eddy currents in any conductive parts. A diamond anvil cell (DAC) was designed with slits to reduce eddy current loop area. The DAC was machined out of titanium, a poor thermal conductor, and was machined using a tabletop 5-axis CNC. I will present preliminary results from measurements in pulse field at high pressure, and details of the design of the cell.