  We propose a mechanism of inductance operation originating from a dynamical
Aharonov-Casher (AC) phase of an electron in ferromagnets. By taking into
account spin-orbit coupling effects, we extend the theory of emergent
inductance, which has recently been discovered in spiral magnets, to arbitrary
magnetic textures. The inductance of dynamical AC phase origin universally
arises in the coexistence of magnetism and a spin-orbit coupling, even with
spatially-uniform magnetization, allowing its stable operation in wide ranges
of temperature and frequency. Revisiting the widely studied systems, such as
ferromagnets with spatial inversion asymmetry, with the new perspective offered
by our work will lead to opening a new paradigm in the study of AC phase
physics and the spintronics-based power management in ultra-wideband frequency
range.
