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Spin-Polarized Electrons Extracted from GaAs Tips using Field Emission
http://hdl.handle.net/2237/11993
http://hdl.handle.net/2237/1199364271c88-85e8-4cf8-b190-2e2ca2052d28
名前 / ファイル | ライセンス | アクション |
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25483997.pdf (738.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-07-31 | |||||
タイトル | ||||||
タイトル | Spin-Polarized Electrons Extracted from GaAs Tips using Field Emission | |||||
言語 | en | |||||
著者 |
Kuwahara, M.
× Kuwahara, M.× Morino, T.× Nakanishi, T.× Okumi, S.× Yamamoto, M.× Miyamoto, M.× Yamamoto, N.× Sakai, R.× Tamagaki, K.× Mano, A.× Utsu, A.× Yamaguchi, K. |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | Copyright (2007) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | spin-polarization | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | field emission | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | NEA surface | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | photocathode | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | depolarization | |||||
抄録 | ||||||
内容記述 | A pyramidal shaped GaAs (tip-GaAs) photocathode for a polarized electron source (PES) was developed to improve beam brightness and negative electron affinity (NEA) lifetime by using field emission. The emission mechanism also enables the photocathode to extract electrons from the positive electron affinity (PEA) surface, and relax the NEA lifetime problem. I-V characteristics of electrons extracted from tip-GaAs shows that the electron beam was extracted by field emission mechanism, because a linear dependence was obtained in Fowler-Nordheim (F-N) plot. Furthermore, a tip-GaAs cathode has succeeded in generation of spin polarized electron beam. The polarization degree of tip-GaAs is about 34% at excitation photon energy of 1.63eV which is no less than that obtained by an NEA-GaAs cathode. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Institite of Physics | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1063/1.2750952 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0094-243X | |||||
書誌情報 |
en : AIP Conference Proceedings 巻 915, 号 1, p. 1055-1060, 発行日 2007 |
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フォーマット | ||||||
application/pdf | ||||||
著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1063/1.2750952 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/11993 | |||||
識別子タイプ | HDL |