Effective work functions for thermal pos
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Hiroyuki Kawano; Seiji Matsui; Hajime Kobayashi; Yongfa Zhu
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Article
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1997
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Elsevier Science
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English
⚖ 278 KB
To elucidate the thermionic property of a polycrystal surface of Ta heated in an easily attainable high vacuum (-1O-5 Pa), the effective work functions (4' and 4") for thermal positive-ionic and electronic emissions from the surface were measured as a function of surface temperature (T). ( 1) Above