Abstract
Electron emission from antiferroelectric (Pb0.99Nb0.02)[(Zr0.80Sn0.20)0.952Ti0.048]0.98O3 cathode has been investigated. The PZST cathode can maintain a metastable ferroelectric phase by the application of a high-enough field, thus implying three possibly pulse-loading configurations for electron emission measurements. The fact that emission charge is larger than the non-compensated charge indicates that the surface plasma contributes to the total emission charge. Furthermore, χi(i=A, B, C), characterising the contribution of surface plasma to the total emission charge, was defined. It was found that the emission charge increases almost linearly with χ i . Our results are of great importance for a better understanding of electron emission in antiferroelectric / ferroelectric cathodes.
| Original language | English |
|---|---|
| Article number | 58 |
| Journal | Pramana - Journal of Physics |
| Volume | 92 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Apr 2019 |
Keywords
- 77.22.Ej
- 77.80.Dj
- 77.84.Cg
- Electron emission
- emission charge
- metastable ferroelectric
- surface plasma