1998 年 7 巻 p. 611-613
The resistivity of SmS single crystal has been measured under pressure up to 8 GPa. As an applied pressure is increased, the electrical resistivity changes drastically. In particular it shows a kink at TM in the p vs T curve above 2 GPa. We found that the electrical resistivity shows the ρ=ρ0+AT2 dependencewith a largecoefficient Abelow TM. If we ascribe this term to the electron-electron scattering, the electron correlation effect plays a dominant role in the high pressure region, which may correspond to the large γ value.