Abstract
In this study, field emission (FE) properties of a high-Tc superconductor Bi2Sr2CaCu2O 8+δ (Bi-2212) whisker as well as the optimization of the sample preparation methods were explored. Either chemical etching or mechanical cutting was undertaken at first in order to sharpen one end of the whisker. Both of the treatments successfully yielded a sharply pointed tip with its radius less than 500 nm. Subsequent preparation treatments in a UHV chamber provided layered patterns in FIM observation, which were very characteristic of those of other layered superconductors. More importantly, the treatments inside the UHV chamber stabilized FE currents to a significant level. The resulting fluctuation was subtle enough to be analyzed the energy distribution curves of the FE electron beams issuing from the superconducting Bi-2212.
| Original language | English |
|---|---|
| Title of host publication | IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings |
| Pages | 284-286 |
| Number of pages | 3 |
| Publication status | Published - 2004 |
| Event | IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings - Beijing Duration: 2004 Sep 6 → 2004 Sep 10 |
Other
| Other | IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings |
|---|---|
| City | Beijing |
| Period | 04/9/6 → 04/9/10 |
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ASJC Scopus subject areas
- Engineering(all)
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Field electron emission from a high-Tc superconductor Bi 2Sr2CaCu2O8+δ whisker. / Takano, I.; Hatano, T.; Ishikawa, T.; Cho, B. L.; Rokuta, E.; Oshima, C.
IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings. 2004. p. 284-286.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Field electron emission from a high-Tc superconductor Bi 2Sr2CaCu2O8+δ whisker
AU - Takano, I.
AU - Hatano, T.
AU - Ishikawa, T.
AU - Cho, B. L.
AU - Rokuta, E.
AU - Oshima, C.
PY - 2004
Y1 - 2004
N2 - In this study, field emission (FE) properties of a high-Tc superconductor Bi2Sr2CaCu2O 8+δ (Bi-2212) whisker as well as the optimization of the sample preparation methods were explored. Either chemical etching or mechanical cutting was undertaken at first in order to sharpen one end of the whisker. Both of the treatments successfully yielded a sharply pointed tip with its radius less than 500 nm. Subsequent preparation treatments in a UHV chamber provided layered patterns in FIM observation, which were very characteristic of those of other layered superconductors. More importantly, the treatments inside the UHV chamber stabilized FE currents to a significant level. The resulting fluctuation was subtle enough to be analyzed the energy distribution curves of the FE electron beams issuing from the superconducting Bi-2212.
AB - In this study, field emission (FE) properties of a high-Tc superconductor Bi2Sr2CaCu2O 8+δ (Bi-2212) whisker as well as the optimization of the sample preparation methods were explored. Either chemical etching or mechanical cutting was undertaken at first in order to sharpen one end of the whisker. Both of the treatments successfully yielded a sharply pointed tip with its radius less than 500 nm. Subsequent preparation treatments in a UHV chamber provided layered patterns in FIM observation, which were very characteristic of those of other layered superconductors. More importantly, the treatments inside the UHV chamber stabilized FE currents to a significant level. The resulting fluctuation was subtle enough to be analyzed the energy distribution curves of the FE electron beams issuing from the superconducting Bi-2212.
UR - http://www.scopus.com/inward/record.url?scp=20444401245&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=20444401245&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:20444401245
SN - 0780384377
SP - 284
EP - 286
BT - IVESC2004 - 5th International Vacuum Electron Sources Conference Proceedings
ER -