Mutual transformation of reversible and bound polarization in Y-type BaSrCo2Fe11AlO22 ceramics

The performance of continuously reversed polarization induced by non-collinear conical magnetic structures was investigated in Y-type BaSrCo2Fe11AlO22 ceramics. The electrical polarization induced by the non-collinear magnetic structures was categorized as reversible polarization and bound polarization. When the range of a circulating magnetic field H >= +/- 1.5 kOe, the P-H loops reached a saturated state and the saturated polarization increased linearly as the circulating magnetic field increased, which was ascribed to the bound polarization. During the continuous magnetic field cycle, a portion of the reversible polarization transformed into bound polarization and only the poling process can achieve inverse transformation. Therefore, the polarization attenuated exponentially as the number of the H cycles increased.

Automated summary

In Y-type BaSrCo2Fe11AlO22 ceramics, the continuously reversed polarization induced by non-collinear conical magnetic structures can be categorized as reversible polarization and bound polarization. Saturated polarization increases linearly with the circulating magnetic field, but exponentially attenuates as the number of cycles increases.