DOI: 10.1063/1.333228. Oxygen-enhanced thermionic emission pattern of hemispherical single-crystal LaB6

Oxygen-enhanced thermionic emission pattern of hemispherical single-crystal LaB6

10.1063/1.333228

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

With the application of Martin’s experimental arrangement for direct observation of thermionic emission patterns from a hemispherical single-crystal LaB6 cathode, it has been determined that oxygen-enhanced thermionic emission does occur for the (210) plane at the rather low partial pressure of oxygen, i.e., in the 10−9-Torr region, at sample temperatures of 1050 °C. For further quantitative assessment, work-function measurements by Richardson plots were done for different crystal planes of clean surface by attaching a photomultiplier. The result clearly shows that the values of the work function increases in order from (100), (210), (110), and (111). The measurements were also extended to the oxygen-enhanced surface of the (210) plane and it was found that the results follow, phenomenologically, the Richardson plot as well.

Bibliography

Shimizu, R., Onoda, H., Hashimoto, H., & Hagiwara, H. (1984). Oxygen-enhanced thermionic emission pattern of hemispherical single-crystal LaB6. Journal of Applied Physics, 55(5), 1379â1387.

Authors 4

R. Shimizu (first)
H. Onoda (additional)
H. Hashimoto (additional)
H. Hagiwara (additional)

References 21 Referenced 5

10.1016/0039-6028(81)90625-7 / Surf. Sci. (1981)
10.1063/1.327688 / J. Appl. Phys. (1980)
10.1088/0508-3443/16/12/306 / Br. J. Appl. Phys. (1965)
10.1063/1.1657092 / J. Appl. Phys. (1969)
10.1016/S0042-207X(77)80438-7 / Vacuum (1977)
{'key': '2024020502371894000_r5'}
10.1063/1.326542 / J. Appl. Phys. (1979)
10.1143/JJAP.19.1267 / Jpn. J. Appl. Phys. (1980)
10.1016/0039-6028(80)90253-8 / Surf. Sci. (1980)
10.1063/1.328132 / J. Appl. Phys. (1980)
10.1016/0039-6028(82)90660-4 / Surf. Sci. (1982)
{'key': '2024020502371894000_r11'}
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{'key': '2024020502371894000_r13', 'first-page': 'L', 'volume': '19', 'year': '1980', 'journal-title': 'Jpn. J. Appl. Phys.'} / Jpn. J. Appl. Phys. (1980)
10.1103/PhysRev.49.436 / Phys. Rev. (1936)
10.1103/PhysRev.56.947 / Phys. Rev. (1939)
{'key': '2024020502371894000_r16', 'first-page': '605', 'volume': '61', 'year': '1971', 'journal-title': 'Surf. Sci.'} / Surf. Sci. (1971)
10.1063/1.328535 / J. Appl. Phys. (1981)
{'key': '2024020502371894000_r18'}
{'key': '2024020502371894000_r19'}
{'key': '2024020502371894000_r20', 'volume': '122', 'year': '1982', 'journal-title': 'Surf. Sci.'} / Surf. Sci. (1982)

Dates

Type	When
Created	22 years, 6 months ago (Feb. 14, 2003, 1:52 p.m.)
Deposited	1 year, 7 months ago (Feb. 4, 2024, 9:37 p.m.)
Indexed	1 year, 7 months ago (Feb. 4, 2024, 10:10 p.m.)
Issued	41 years, 6 months ago (March 1, 1984)
Published	41 years, 6 months ago (March 1, 1984)
Published Print	41 years, 6 months ago (March 1, 1984)

Funders 0

None

BibTeX

@article{Shimizu_1984, title={Oxygen-enhanced thermionic emission pattern of hemispherical single-crystal LaB6}, volume={55}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.333228}, DOI={10.1063/1.333228}, number={5}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Shimizu, R. and Onoda, H. and Hashimoto, H. and Hagiwara, H.}, year={1984}, month=mar, pages={1379–1387} }

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