Nonmagnetic indenter-type high-pressure cell for magnetic measurements
T C Kobayashi1, H Hidaka, H Kotegawa
1Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan. kobayashi@science.okayama-u.ac.jp
Abstract:
An indenter-type high-pressure cell has been developed for electric and magnetic measurements in low-temperature and high-magnetic-field environments. The maximum pressure achieved at low temperatures is more than 4.5 GPa, which is higher than that of a conventional piston-cylinder cell. The typical sample space at maximum pressure is 1.6 mm in diameter and approximately 0.7 mm in depth, and magnetic measurements such as ac-susceptibility and nuclear magnetic resonance can be performed using a miniature coil. All the components of the indenter cell are made of nonmagnetic materials that have enough thermal conductivity for low-temperature experiments using a 3He/4He dilution refrigerator. Another indenter-type cell designed for a commercial superconducting quantum interference device magnetometer is also reported.
