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Structural and morphological properties of metallic thin films grown by pulsed laser deposition for photocathode application

机译：脉冲激光沉积在光电阴极上生长的金属薄膜的结构和形貌特性

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摘要

In this work yttrium and lead thin films have been deposited by pulsed laser deposition technique and characterized by ex situ different diagnostic methods. All the films were adherent to the substrates and revealed a polycrystalline structure. Y films were uniform with a very low roughness and droplet density, while Pb thin films were characterized by a grain morphology with a relatively high roughness and droplet density. Such metallic materials are studied because they are proposed as a good alternative to copper and niobium photocathodes which are generally used in radiofrequency and superconducting radiofre-quency guns, respectively. The photoemission performances of the photocathodes based on Y and Pb thin films have been also studied and discussed.
机译：在这项工作中，钇和铅薄膜已通过脉冲激光沉积技术沉积，并通过异位诊断方法进行了表征。所有的薄膜都粘附在基底上并显示出多晶结构。 Y膜是均匀的，具有非常低的粗糙度和液滴密度，而Pb薄膜的特征在于具有相对较高的粗糙度和液滴密度的晶粒形态。之所以对这类金属材料进行研究，是因为它们被建议替代铜和铌光电阴极，而铜和铌光电阴极通常分别用于射频和超导射频枪中。还研究和讨论了基于Y和Pb薄膜的光电阴极的光发射性能。

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  • 来源
    《Applied Physics》 |2016年第3期|162.1-162.5|共5页
  • 作者

    A. Lorusso; F. Gontad; A. P. Caricato; E. Chiadroni; E. Broitman; A. Perrone;

  • 作者单位

    Dipartimento di Matematica e Fisica 'E. De Giorgi' and Istituto Nazionale di Fisica Nucleare, Universita del Salento, 73100 Lecce, Italy;

    Dipartimento di Matematica e Fisica 'E. De Giorgi' and Istituto Nazionale di Fisica Nucleare, Universita del Salento, 73100 Lecce, Italy;

    Dipartimento di Matematica e Fisica 'E. De Giorgi' and Istituto Nazionale di Fisica Nucleare, Universita del Salento, 73100 Lecce, Italy;

    Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, 00044 Frascati, Italy;

    Department of Physics, Chemistry and Biology (IFM), Linkoping University, 581 83 Linkoeping, Sweden;

    Dipartimento di Matematica e Fisica 'E. De Giorgi' and Istituto Nazionale di Fisica Nucleare, Universita del Salento, 73100 Lecce, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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