Ionization on Tungsten Single-Crystal Surfaces
- 15 August 1963
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 39 (4) , 1107-1114
- https://doi.org/10.1063/1.1734363
Abstract
Surface ionization of atomic beams of strontium or calcium from the [110] and the [111] directions of tungsten was studied mass-spectrometrically. Results consistent with the Saha—Langmuir relation indicate that the method is applicable for the determination of first ionization potentials or work functions. A value for the work function of the [110] direction is 5.41±0.04 eV. A value for the [111] direction of tungsten is 4.49±0.04 eV.Keywords
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