Electron tunnelling through a quantifiable barrier of variable width

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2009
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Wyatt, Adrian F. G.
Klier, Jürgen
Zech, Martin
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10.1088/1742-6596/150/2/022098
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Journal of Physics: Conference Series ; 150 (2009). - 022098. - Institute of Physics Publishing (IOP). - ISSN 1742-6588. - eISSN 1742-6596
Abstract
This is the first study of electron tunnelling through a quantifiable barrier of adjustable width. We find quantitative agreement between the measured and calculated tunnelling probability with no adjustable constants. The tunnel barrier is a thin film of 3He on Cs1 which it wets. We excite photoelectrons which have to tunnel through the barrier to escape. The image potential must be included in calculating the barrier and hence the tunnelling current. This has been a debatable point until now. We confirm that an electron has a potential of 1.0 eV in liquid 3He for short times before a bubble forms. We show that the thickness of the 3He is given by thermodynamics for films of thickness at least down to 3 monolayers.
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ISO 690WYATT, Adrian F. G., Hubertus BROMBERGER, Jürgen KLIER, Paul LEIDERER, Martin ZECH, 2009. Electron tunnelling through a quantifiable barrier of variable width. In: Journal of Physics: Conference Series. Institute of Physics Publishing (IOP). 150, 022098. ISSN 1742-6588. eISSN 1742-6596. Available under: doi: 10.1088/1742-6596/150/2/022098
BibTex
@article{Wyatt2009Elect-58433,
  year={2009},
  doi={10.1088/1742-6596/150/2/022098},
  title={Electron tunnelling through a quantifiable barrier of variable width},
  volume={150},
  issn={1742-6588},
  journal={Journal of Physics: Conference Series},
  author={Wyatt, Adrian F. G. and Bromberger, Hubertus and Klier, Jürgen and Leiderer, Paul and Zech, Martin},
  note={Article Number: 022098}
}
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