Magnetic Study of Metal-Insulator-Metal Transitions in (DMe-DCNQI-α, α '-d₂)₂Cu

抄録

Temperature dependence of magnetic susceptibility of Cu salt of DMe-DCNQI-α, α '-d₂ has been investigated over the temperature range of the metal-insulator-metal (M-I-M) reentrant transition. The insulating phase of this salt has been revealed to exhibit the same temperature dependence of susceptibility as that of the insulator phase of (DMe-DCNQI-d₈)₂Cu, which shows only a M-I transition. In the reentrant metallic phase, there is no sizable enhancement of susceptibility such as expected from the specific heat enhancement.