Author
Listed:
- SERGII SOLOGUB
(Department of Adsorption Phenomena, Institute of Physics of the National Academy of Sciences of Ukraine, Avenue Nauky 46, Kyiv 03028, Ukraine)
- IVAN BORDENIUK
(Department of Adsorption Phenomena, Institute of Physics of the National Academy of Sciences of Ukraine, Avenue Nauky 46, Kyiv 03028, Ukraine)
- ROMAN AMIROV
(Department of Adsorption Phenomena, Institute of Physics of the National Academy of Sciences of Ukraine, Avenue Nauky 46, Kyiv 03028, Ukraine)
- NATALIIA PETROVA
(Department of Adsorption Phenomena, Institute of Physics of the National Academy of Sciences of Ukraine, Avenue Nauky 46, Kyiv 03028, Ukraine)
- IVAN YAKOVKIN
(#x2020;Department of Physical Electronics, Institute of Physics of the National Academy of Sciences of Ukraine, Avenue Nauky 46, Kyiv 03028, Ukraine)
Abstract
We present a review of our investigations on the increasing specularity of surface scattering of conduction electrons on the W(011), Mo(011), and W(001) surfaces after covering the surfaces with well-ordered (sub)monolayers of adsorbed hydrogen or deuterium. The degree of the specularity of surface scattering was estimated on the base of measurements of magnetoresistance of single-crystalline plates, cooled with liquid He, under ultra-high vacuum conditions, and in a strong magnetic field. The structures of adsorbed hydrogen and deuterium layers were determined from LEED patterns. It is found that the magnetoresistance non-monotonically depends on submonolayer hydrogen coverage and degree of the ordering of adsorbed layers, showing a drastic increase of the specularity (which is higher than for the atomically-clean surfaces!) after the formation of the well-ordered (1×1)-H structures and a pronounced increase of the specularity after the formation of the well-ordered (2×2)-2H structure. Changes in the magnetoresistance induced by the ordering of structures of adsorbed H(D) layers are found to corroborate with the adsorption-induced transformation of Fermi contours of surface electronic states obtained in performed DFT calculations. The increase of the specularity of the scattering caused by the ordering of the surface structures is attributed to the decrease of the probability of electronic transitions between the surface and bulk electronic states induced by surface scattering.
Suggested Citation
Sergii Sologub & Ivan Bordeniuk & Roman Amirov & Nataliia Petrova & Ivan Yakovkin, 2021.
"Adsorption-Induced Increasing Specularity Of Conduction Electrons’ Surface Scattering,"
Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(04), pages 1-11, April.
Handle:
RePEc:wsi:srlxxx:v:28:y:2021:i:04:n:s0218625x2130001x
DOI: 10.1142/S0218625X2130001X
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