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Estimation of nano-roughness parameters of a solid substrate using surface electrons over a helium film

В.А. Николаенко, S. S. Sokolov

Low Temperature Physics | Aug 1, 2026

Abstract

Abstract

The possibility of studying the surface quality of a dielectric substrate by measuring the mobility of surface electrons over a helium film as its thickness varies is analyzed. A device for measuring film thickness, containing a displacer with an electromagnetic drive, is described. The device’s plumb line system ensures an average uniform film thickness. Using the device and mobility measurements, one can estimate the effective roughness scale.

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Authors

Researchers on this paper

В.А. Николаенко

first | B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

S. S. Sokolov

last | B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine | ORCID 0000-0001-5527-0313

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BibTeX

@article{2026Estimation,
  title = {Estimation of nano-roughness parameters of a solid substrate using surface electrons over a helium film},
  author = {В.А. Николаенко and S. S. Sokolov},
  journal = {Low Temperature Physics},
  year = {2026},
  doi = {10.1063/10.0044468},
  url = {https://doi.org/10.1063/10.0044468}
}

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