Fig. 3.

Composition dependence of the superconducting transition in the Ta-Nb-Hf-Zr-Ti HEA. Shown is the ZFC magnetization of the HEAs ${\left[\text{TaNb}\right]}_{1-x}{\left(\text{ZrHfTi}\right)}_x$ with x = 0.2, 0.25, 0.3, 0.33, 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, and 0.84 in the vicinity of the superconducting transition, measured in an external magnetic field of ${\mu }_{0}H=$ 2 mT.