Abstract
Experimental insights into a reverse switching charge for antiferroelectric (AFE) Hf0.1Zr0.9O2 are validated by pulse measurement and capacitance-voltage (C-V). The difference between saturation polarization ( $\text{P}_{\mathrm {S}}$ ) and remnant polarization ( $\text{P}_{\mathrm {r}}$ ) plays an important role in the model and is confirmed by the steep and gradual slope of the P-V loop, which is made by AFE and antiferroelectric-dielectric (AFE-DE), respectively. AFE capacitor yield far superior released charge ( $\text{Q}_{\mathrm {D}}$ ) than capacitor of AFE-DE bilayers due to strong reverse switching of $\text{P}_{\mathrm {S}}$ and $\text{P}_{\mathrm {r}}$ difference. A nonhysteretic $\text{Q}_{\mathrm {D}}$ scheme is proposed by alternating bipolar AFE operation without a DE to achieve a bidirectional enhancement. This work demonstrates an experimental $\text{Q}_{\mathrm {D}}$ enhancement by an AFE system and supports the reverse switching concept.
Original language | English |
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Pages (from-to) | 1559-1562 |
Number of pages | 4 |
Journal | IEEE Electron Device Letters |
Volume | 43 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2022 Sept 1 |
Keywords
- Antiferroelectric
- charge enhancement
- reverse switching
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering