  We investigate the dynamic magnetic response of ferromagnetic flexible
NiFe/Ta and FeCuNbSiB/Ta multilayers under external stress. We explore the
possibility of handling magnetic anisotropy and dynamic magnetic response of
flexible magnetostrictive nanostructures. We quantify the sensitivity of the
multilayers under external stress by calculating the ratio $|\Delta
\textrm{MI}|/|\Delta \bar{\sigma}|$ and show that considerable values can be
reached by tuning the magnetic field, frequency, magnetostriction constant, and
external stress. The results reveal possibilities of application of flexible
magnetostrictive multilayers under external stress and place them as very
attractive candidates as element sensor for the development of sensitive smart
touch sensors.
