Local Polarization Unit Engineering Enables Ultrahigh Energy Density in NBT-Based High-Entropy Ceramic Capacitors.

In the face of challenges inherent to multicomponent complexity, a clear trend is to use controllable local disorder and random fields to weaken long‐range domain coherence while retaining robust local polar units, thereby enabling a higher fraction of reversible polarization and lower macroscopic loss [ 17 ].

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