  The demand of fast and power efficient spintronics devices with flexibility
requires additional energy for magnetization manipulation. Stress/and strain
have shown their potentials for tuning magnetic properties to the desired
level. Here, we report a systematic study for the effect of both tensile and
compressive stresses on the magnetic anisotropy (MA). Further the effect of
stress on the domain structure and magnetization relaxation mechanism in a
perpendicularly magnetized Co/Pt film has been studied. It is observed that a
minimal in-plane tensile strain has increased the coercivity of the film by
38$\%$ of its initial value, while a very small change of coercivity has been
found under compressive strain. The size of ferromagnetic domains decreases
under tensile strain, while no change is observed under the compressive strain.
Magnetization relxation measured at sub-coercive fields yields longer
relaxation time in the strained state.
