Probe of skyrmion phases and dynamics in MnSi via the magnetoelectric effect in a composite configuration

We have developed a sensitive technique to probe the magnetic skyrmion phases and dynamics by employing interfacial coupling effect in magnetoelectric composite configuration. The study on MnSi single crystal sample using this provides clear evidences for lattice phase coexistence of conical phase. Above Curie temperature TC, region with strong spin fluctuation is revealed as well. By tuning density Skyrmion or disorder, transition from skyrmion-conical coexisting observed. observation good agreement theoretical model which predicts dissipation behavior