Skyrmion helicity: Quantization and quantum tunneling effects
Skyrmion helicity: Quantization and quantum tunneling effects
We derive the quantization of magnetic helicity in the solid state, and we demonstrate tunable macroscopic quantum tunneling, coherence, and oscillation for a skyrmion spin texture stabilized in frustrated magnets. We also discuss the parameter space for the experimental realization of quantum effects. Typically, for a skyrmion of 5 nm …