Abstract
With shrinking device sizes, controlling domain formation in nanoferroelectrics becomes crucial. Periodic nanodomains that self-organize into so-called 'superdomains' have been recently observed, mainly at crystal edges or in laterally confined nanoobjects. Here we show that in extended, strain-engineered thin films, superdomains with purely in-plane polarization form to mimic the single-domain ground state, a new insight that allows a priori design of these hierarchical domain architectures. Importantly, superdomains behave like strain-neutral entities whose resultant polarization can be reversibly switched by 90 degrees, offering promising perspectives for novel device geometries.
Original language | English |
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Article number | 4415 |
Number of pages | 8 |
Journal | Nature Communications |
Volume | 5 |
DOIs | |
Publication status | Published - Jul-2014 |
Keywords
- SINGLE-CRYSTAL BATIO3
- DOMAIN FORMATION
- CLOSURE
- POLARIZATION
- STATES
- PB(ZR,TI)O-3
- ROTATION
- NANODOTS