A spherical small-sized hydrostatic-pressure cell for measuring anisotropic galvanomagnetic effects

A champed hydrostatic-pressure cell, which can be rotated in two planes in the gap of a magnet, solenoid, and cryostat, is described. The cell ensures the maximum possible mechanical strength for the given dimensions due to i ts spherical body shape and the almost spherical shape of the internal cavi ty. The chamber is fully made of nonmagnetic materials and provides a press ure of up to 2.5 GPa at an external diameter of 23 mm (for a cavity 3.6 mm in diameter) or 2.0 GPa at an external diameter of 16 mm (for a cavity 3 mm in diameter).