Figure 1
(a) Magnetic field (H) dependence of the real part of linear ac susceptibility (χ’) (normalised to its value in zero field) at 350 mK for the VL prepared using different thermomagnetic cycling. The red line is χ’-H when the magnetic field is slowly ramped up after cooling the sample in zero field (ZFC state). The black line is χ’-H when the magnetic field is ramped down from a value higher than Hc2. The square symbols stand for the χ’ for the FC states obtained by cooling the sample from T > Tcin the corresponding field; the dashed line shows the locus of these FC states created at different H. The thin lines starting from the square symbols show the evolution of χ’ when the magnetic field is ramped up or ramped down (ramped down segment shown only for 0.8 T), after preparing the VL in the FC state. We observe that the FC state is extremely unstable to any perturbation in magnetic field. χ’ is normalised to the zero field value for the ZFC state. (b) Phase diagram showing the temperature evolution of 
Hp and Hc2 as a function of temperature.
