NMR Manometer for Clamp Pressure Cells
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A simple manometer for measuring pressures up to 15 kbar in clamp type cells is presented on the basis of the pressure dependence of zero-field NMR frequencies v in such ferromagnets as EuO and fcc Co. A narrow and intense <SUP>153</SUP>Eu NMR in EuO is suitable for a NMR manometer with an accuracy of 0. 1 kbar at 4. 2 K. An intense, but rather broad <SUB>59</SUB>Co NMR in fcc Co can be used in temperatures between 4. 2-300 K, where d v/dP is nearly independent of temperature. It is shown by using NMR manometers that the presssure in a clamp cell remains constant below 77 K.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 1505-1507, 1998
The Japan Society of High Pressure Science and Technology