Effect of the magnetic field on the melting transition of H2O and D2O measured by a high resolution and supersensitive differential scanning calorimeter

The magnetic effect on the melting transition of H2O and D2O was measured by using a high resolution and supersensitive differential scanning calorimeter working in a magnetic bore. The melting temperature of H2O and D2O at 6 T was 5.6 and 21.8 mK higher than that without the magnetic field, respectively. The temperature shifts of the melting transition of H2O and D2O were proportional to the square of the magnetic field. The temperature shifts of the melting transition due to the magnetic field did not obey the magneto-Clapeyron equation quantitatively. A dynamic effect due to the magnetic field was discussed for an alternative interpretation. (C) 2004 American Institute of Physics.