IV-F-1 Reply to the "Comment on 'Electronic Structure of Insulating Salts of the (kappa)-(BEDT-TTF)₂X Family Studied by Low-Temperature Specific Heat Measurements'"

Yasuhiro NAKAZAWA and Kazushi KANODA

[Phys. Rev. B 56, 951 (1997)]

The ac and dc susceptibility data of the identical sample of (kappa)-(BEDT-TTF)₂Cu[N(CN)₂]Cl that we have used for the previous low-temperature specific heat experiment [Phys. Rev. B 53, R8875 (1996)] is presented. As we have shown in Figures 1, 2, we observe neither appreciable depression of the magnetic transition temperature nor appearance of superconductive phase due to the grease effect in our experimental configuration, which excludes the interpretation that the absence of the (gamma) term in our specific heat data in zero magnetic field is due to the pressure induced superconductivity.

Figure 1. Temperature dependence of magnetic susceptibility of (kappa)-(BEDT-TTF)₂Cu[N(CN)₂]Cl obtained in the external field of 1T. The inset shows M vs T curve around the weak ferromagnetic transition in a field of 10Oe.

Figure 2. Temperature dependence of ac susceptibility of (kappa)-(BEDT-TTF)₂Cu[N(CN)₂]Cl.

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