Abstract
Thermal and magnetic properties of low-dimensional magnetic systems, such as CuCl2·2H2O, CoCl2·6H2O, TMMC and Mn(HCOO)2·2H2O, have been studied at high pressures and low temperatures. The contents of this review article are
1. Introduction of the calorimetry at high pressures.
2. Experimental method for the calorimetry at high pressures.
3. Pressure dependence of transition temperature and magnetic interaction.
4. Magnetic phase diagram and law of corresponding states at high pressures.
5. Thermal and magnetic observation of a structural transition.
6. Effect of compression on the first and the second order phase transitions.
7. Sharpness of phase transition and its reproducibility on the repeated application of pressure.
