  The spin orientation of electronic wavefunctions in crystals is an internal
degree of freedom, typically insensitive to electrical knobs. We argue from a
general symmetry analysis and a $\vec k \cdot \vec p$ perspective, that
monolayer 1T'-WTe$_2$ possesses a gate-activated canted spin texture that
produces an electrically tunable bulk band quantum geometry. In particular, we
find that due to its out-of-plane asymmetry, an applied out-of-plane electric
field breaks inversion symmetry to induce both in-plane and out-of-plane
electric dipoles. These in-turn generate spin-orbit coupling to lift the spin
degeneracy and enable a bulk band Berry curvature and magnetic moment
distribution to develop. Further, due to its low symmetry, Berry curvature and
magnetic moment in 1T'-WTe$_2$ possess a dipolar distribution in momentum
space, and can lead to unconventional effects such as a current induced
magnetization and quantum non-linear anomalous Hall effect. These render
1T'-WTe$_2$ a rich two-dimensional platform for all-electrical control over
quantum geometric effects.
