Study of Energy Distribution of Schottky Emitted Electrons and its Theoretical Analysis using Effective Mass Approximation

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概要

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• We measured the precise energy distributions of Schottky emitters, Zr/O/W, Sc/O/W, and Ba/O/W at low operation currents. The obtained distributions were narrower than those of conventional thermionic emission (TE) models, especially in energy regions higher than the peaks of the distributions. To explain the measurement results, a new model that uses effective mass approximation is introduced. Total reflection of the electrons at the interface, where the effective mass region borders on a vacuum, is considered. The calculated results agreed well with the measurements.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2003-10-15

著者

• Ohshima Takashi

  Central Research Laboratory Hitachi Ltd.

• Nishiyama Hidetoshi

  Central Research Laboratory Hitachi Ltd.

• Nishiyama Hidetoshi

  Central Research Laboratory, Hitachi Ltd., 1-280 Higashi-Koigakubo, Kokubunji, Tokyo 185-8601, Japan

• Ohshima Takashi

  Central Research Laboratory, Hitachi Ltd., 1-280 Higashi-Koigakubo, Kokubunji, Tokyo 185-8601, Japan

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