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1992 | 81 | 2 | 295-302
Article title

Field Stimulated Surface Diffusion of Lithium on Germanium (100) and (111) Planes

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Content
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Languages of publication
EN
Abstracts
EN
Field stimulated surface diffusion of lithium on atomically clean (100) and (111) germanium single crystal planes has been investigated by means of field emission method. Sealed-off field emission tube with a channel multiplier was used. The surface density of lithium adatoms on the germanium surface was determined applying a standard tungsten (112) crystal plane. The dependences of the surface diffusion activation energy on the applied electric field at different lithium coverages lave been obtained. The initial dipole moment of Li adatoms on the Ge (100) and (111) planes was then determined. The values 1.3 ± 0.2 and 1.0 ± 0.2 debye obtained for the Li-Ge (100) and Li-Ge (111) systems respectively are in good agreement with the ones calculated from the work function measurements. The reverse effect of the field influence on the surface diffusion of lithium on Ge (100) and (111) planes has been observed as the second lithium layer is filling. Relative contributions of the peculiarities of semiconductor substrate and alkali adsorbate on the properties of adsystems are discussed on the basis of experimental results.
Keywords
EN
Publisher

Year
Volume
81
Issue
2
Pages
295-302
Physical description
Dates
published
1992-02
received
1991-05-21
(unknown)
1991-05-27
Contributors
author
  • Department of Physics, Technical University of Lvov, Mira St. 12, 290646, Lvov, Ukraine
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv81z214kz
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