| 21. | The electron behaviour in metals varies with temperature and is largely reflected by the electron work function.
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| 22. | One may distinguish between two groups of experimental methods for work function measurements : absolute and relative.
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| 23. | The value of the vacuum level depends on the surface chosen due to variations in work function.
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| 24. | The work function is determined primarily by a layer of caesium atoms adsorbed on the electrode surfaces.
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| 25. | These have a low work function, meaning that they more readily emit electrons than would the uncoated cathode.
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| 26. | Randomly oriented nanobuds have already been demonstrated to have an extremely low work function for field electron emission.
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| 27. | Thermionic emission can be used to measure the work function of both the hot emitter and cold collector.
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| 28. | The cabinet added the Housing sector to the Ministry of Works functions after Parliament elections in November 2002.
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| 29. | In short, the work function anisotropy of the crystal planes is mapped onto the screen as intensity variations.
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| 30. | The minimum amount of energy needed for an electron to leave a surface is called the work function.
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