Sub-Kelvin magnetic and electrical measurements in a diamond anvil cell with

• Main Authors: Palmer, A. (Author), Silevitch, D. M. (Author), Feng, Yejun (Author), Wang, Yishu (Author), Banerjee, A. (Author), Ren, Y. (Author), Rosenbaum, T. F. (Author), Jaramillo, Rafael (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering (Contributor)
• Format: Article
• Language: English
• Published: American Institute of Physics (AIP), 2017-10-23T17:28:06Z.
• Subjects: Article
• Online Access: Get fulltext

 We discuss techniques for performing continuous measurements across a wide range of pressure-fielderature phase space, combining the milli-Kelvin temperatures of a helium dilution refrigerator with the giga-Pascal pressures of a diamond anvil cell and the Tesla magnetic fields of a superconducting magnet. With a view towards minimizing remnant magnetic fields and background magnetic susceptibility, we characterize high-strength superalloy materials for the pressure cell assembly, which allows high fidelity measurements of low-field phenomena such as superconductivity below 100 mK at pressures above 10 GPa. In situ tunability and measurement of the pressure permit experiments over a wide range of pressure, while at the same time making possible precise steps across abrupt phase transitions such as those from insulator to metal.