The impact of surface plasma on the total emission charge from PZST cathode induced by nanosecond electric pulse
- 1. Northwest Institute of Nuclear Technology, Xi'an (China)
- 2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education and International Centre for Dielectric Research, Xi'an Jiaotong University, Xi'an (China)
- 3. Multi-disciplinary Materials Research Centre, Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an (China)
Description
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 χi. Our results are of great importance for a better understanding of electron emission in antiferroelectric/ferroelectric cathodes. (author)
Additional details
Publishing Information
- Journal Title
- Pramana
- Journal Volume
- 92
- Journal Issue
- 4
- Journal Page Range
- [6 p.]
- CODEN
- PRAMCI
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 50049039
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ANTIFERROELECTRIC MATERIALS; CATHODES; ELECTRON EMISSION; MAGNETIC SURFACES; NANOSTRUCTURES; PLASMA WAVES; ZIRCONIUM
- Descriptors DEC
- DIELECTRIC MATERIALS; ELECTRODES; ELEMENTS; EMISSION; MAGNETIC FIELD CONFIGURATIONS; MATERIALS; METALS; TRANSITION ELEMENTS
Optional Information
- Notes
- 27 refs., 6 figs.