Pressure-Temperature Magnetic Phase Diagram of TbNiSn
Access this Article
Search this Article
The electrical resistivity of TbNiSn for the b-axis has been measured under hydrostatic pressures up to 22 kbar. Resistivity anomalies associated with the successive magnetic transitions are observed. At P=Okbar, the transitions at T<SUB>N</SUB> (=18. 5 K) and T<SUB>3</SUB> (=7. 6 K) are second order whereas the transition at T<SUB>2</SUB> (=6. 0 K) is first order. We observe that the resistivity drops discontinuously at T<SUB>2</SUB> and accompanies thermal hysteresis. There is not appreciable change in the resistivity at T<SUB>1</SUB> (=2. 2 K). The pressure-temperature magnetic phase diagram has been constructed. All the transition temperatures first decrease, take minima at 3 kbar and then increase with increasing pressure. It should be also noted that the T<SUB>3</SUB> line is merged in the T<SUB>2</SUB> line above 17 kbar. Total spin disorder resistivity is pressure independent.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 550-552, 1998
The Japan Society of High Pressure Science and Technology