  We present an analytic study of domain-wall statics and dynamics in
ferromagnetic nanotubes with spin-orbit-induced Dzyaloshinskii-Moriya
interaction (DMI). Even at the level of statics, dramatic effects arise from
the interplay of space curvature and DMI: the domains become chirally twisted
leading to more compact domain walls. The dynamics of these chiral structures
exhibits several interesting features. Under weak applied currents, they
propagate without distortion. The dynamical response is further enriched by the
application of an external magnetic field: the domain wall velocity becomes
chirality-dependent and can be significantly increased by varying the DMI.
These characteristics allow for enhanced control of domain wall motion in
nanotubes with DMI, increasing their potential as information carriers in
future logic and storage devices.
