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Characteristics of electron emission from PZT ferroelectric cathode under strong accelerating field
| Content Provider | Scilit |
|---|---|
| Author | Hayashi, Yasushi Flechtner, Donald Hotta, Eiki |
| Copyright Year | 2002 |
| Description | Journal: Journal of Physics D: Applied Physics We have studied emission characteristics of a PZT ferroelectric cathode under the influence of a strong accelerating field by varying the triggering conditions. The beam current pulse reveals a rising and a steady phase. In the rising phase, the time variation of the beam current is found to be linearly dependent on both the trigger voltage and the diode voltage at the time when the current starts. In the steady phase, field emission characteristics are observed. The results show that the diode voltage is not only accelerating the emitted electrons but also assisting the electron emission from the ferroelectric cathode. An empirical model is proposed and is found to yield a reasonable beam current pulse when the electric field on the surface of the cathode is uniformly distributed. It also provides us with a new possibility to diagnose the emission process of a ferroelectric electron gun. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3727/35/3/318/pdf |
| Ending Page | 286 |
| Page Count | 6 |
| Starting Page | 281 |
| ISSN | 00223727 |
| e-ISSN | 13616463 |
| DOI | 10.1088/0022-3727/35/3/318 |
| Journal | Journal of Physics D: Applied Physics |
| Issue Number | 3 |
| Volume Number | 35 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2002-01-22 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics D: Applied Physics Applied Physics Accelerating Field Strong Accelerating Electron Emission Field Emission Characteristics Pzt Ferroelectric Cathode |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Acoustics and Ultrasonics Condensed Matter Physics Electronic, Optical and Magnetic Materials |
