Line Plot from Scientific Research

The phase diagram of -(BEDT-TTF)2Cu2(CN)3 assembled from R(T, c) (Figs. 2 c and 3) is underlaid with a false-color plot of d ln R/d 1/T (red: insulating, blue: metallic). Inset: checkerboard area indicates range of our strain-dependent experiments. We find a clear back-bending of the insulator-metal boundary (cf. Fig. 1 c) originating from the ‘6K anomaly’ at p = 0. Altogether, the ambient pressure data in b , c and d T / d p < 0 in d provide solid evidence for a low-entropy spin-singlet phase with structural anisotropy -- the hallmarks of a VBS.

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