Figure 1
From: Dynamics and mechanism of oxygen annealing in Fe1+yTe0.6Se0.4 single crystal
(a) Temperature dependence of zero-field-cooled (ZFC) and field-cooled (FC) magnetization at 5 Oe for Fe1+yTe0.6Se0.4 single crystal annealed at 400°C with increasing amount of O2 (molar ratio of the oxygen to the nominal Fe ranging from 0.1% to 1.5%). (b) Changes in Tc and self-field Jc(2 K) for Fe1+yTe0.6Se0.4 annealed at 400°C with increasing amount of O2.
