Figure 6: Pressure–temperature phase diagram of WTe2 and pressure-dependent Hall coefficient.
From: Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride
(a) The T*ZF and Tc versus pressure. The red, pink and blue solid circles represent Tc extracted from different runs of electrical resistance measurements, and the green triangles represent the Tc determined from the a.c. susceptibility measurements. The acronyms LMR and SC stand for the large magnetoresistant state and superconducting state, respectively. The error bars represent the s.d. (b) Hall coefficient (RH) as a function of pressure measured at 10 K and 1 Tesla, displaying a sign change from the positive to the negative at the critical pressure of 10.5 GPa. Solid purple circles and pink squares represent the RH obtained from different runs. The inset shows the second derivative of the Hall coefficient, the maximum of which corresponds to the sign change of Hall coefficient. The shaded area indicates the pressure range where the superconductivity emerges and the sign of RH changes.
