  Many-body localization (MBL) is an emergent phase in correlated quantum
systems with promis- ing applications, particularly in quantum information.
Here, we unveil the existence and analyse this phase in a chiral multiferroic
model system. Conventionally, MBL occurrence is traced via level statistics by
implementing a standard finite-size scaling procedure. Here, we present an
approach based on the full distribution of the ratio of adjacent energy
spacings. We find a strong broadening of the histograms of counts of these
level spacings directly at the transition point from MBL to the ergodic phase.
The broadening signals reliably the transition point without relying on an
averaging procedure. The fast convergence of the histograms even for relatively
small systems allows moni- toring the MBL dynamics with much less computational
effort. Numerical results are presented for a chiral spin chain with a
dynamical Dzyaloshinskii Moriya (DM) interaction, an established model to
describe the spin excitations in a single phase spin-driven multiferroic
system. The multiferroic MBL phase is uncovered and it is shown how to steer it
via electric fields.
