Abstract
Quantum phase modulation is achieved in a metallic nanoring with a $\mathrm{FeNi}∕\mathrm{Cu}∕\mathrm{FeNi}$ (ferromagnet/normal-metal/ferromagnet) layer. Both frequency and amplitude of Aharonov-Bohm oscillation are found to be modified with respect to the magnetization configurations, indicating that the phase modulation originates from the spin-orbit scattering induced by the magnetization of the ferromagnets. Such phase modulation is ``crossover'' phenomena between mesoscopic magnetism and microscopic quantum interference effects, which provides fundamental knowledge upon quantum spin transport.
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