  The influence of temperature on the magnetic-field-driven domain wall (DW)
motion is investigated in GdFeCo ferrimagnets with perpendicular magnetic
anisotropy (PMA). We find that the depinning field strongly depends on
temperature. Moreover, it is also found that the saturation magnetization
exhibits a similar dependence on temperature to that of depinning field. From
the creep-scaling criticality, a simple relation between the depinning field
and the properties of PMA is clearly identified theoretically as well as
experimentally. Our findings open a way for a better understanding how the
magnetic properties influence on the depinning field in magnetic system and
would be valuably extended to depinning studies in other system.
