Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films
Alexey Yu. Aladyshkin
1, 2, 3, 4
2
Publication type: Journal Article
Publication date: 2023-07-03
scimago Q1
wos Q3
SJR: 0.914
CiteScore: 6.2
Impact factor: 3.2
ISSN: 19327447, 19327455
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Physical and Theoretical Chemistry
General Energy
Abstract
Local structural and electronic properties of thin Pb(111) films grown on a Si(111)7 × 7 surface are experimentally studied by means of low-temperature scanning tunneling microscopy and spectroscopy (STM/STS). It is shown that the visible height h of the monatomic step on Pb(111) surface demonstrates oscillatory dependence on a bias voltage U. The period of these oscillations coincides with the period of the oscillations of both local tunneling conductance (dI/dU) and the rate of the STM tip displacement (dZ/dU) at sweeping U. It points to the fact that the observed oscillations of the visible height of monatomic Pb(111) step are controlled by coherent resonant tunneling of electrons from the STM tip to the Pb(111) film through quantum-well states in the thin Pb(111) film. We argue that the maximum and minimum visible heights of the monatomic Pb(111) step correspond to the bias voltages, at which local densities of states for the Pb(111) terraces of different thicknesses are equal.
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Aladyshkin A. Y. et al. Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films // Journal of Physical Chemistry C. 2023. Vol. 127. No. 27. pp. 13295-13301.
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Aladyshkin A. Y. Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films // Journal of Physical Chemistry C. 2023. Vol. 127. No. 27. pp. 13295-13301.
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TY - JOUR
DO - 10.1021/acs.jpcc.3c02415
UR - https://pubs.acs.org/doi/10.1021/acs.jpcc.3c02415
TI - Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films
T2 - Journal of Physical Chemistry C
AU - Aladyshkin, Alexey Yu.
PY - 2023
DA - 2023/07/03
PB - American Chemical Society (ACS)
SP - 13295-13301
IS - 27
VL - 127
SN - 1932-7447
SN - 1932-7455
ER -
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BibTex (up to 50 authors)
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@article{2023_Aladyshkin,
author = {Alexey Yu. Aladyshkin},
title = {Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films},
journal = {Journal of Physical Chemistry C},
year = {2023},
volume = {127},
publisher = {American Chemical Society (ACS)},
month = {jul},
url = {https://pubs.acs.org/doi/10.1021/acs.jpcc.3c02415},
number = {27},
pages = {13295--13301},
doi = {10.1021/acs.jpcc.3c02415}
}
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MLA
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Aladyshkin, Alexey Yu., et al. “Oscillatory Bias Dependence of the Visible Height of Monatomic Pb(111) Steps: Consequence of the Quantum-Size Effect for Thin Metallic Films.” Journal of Physical Chemistry C, vol. 127, no. 27, Jul. 2023, pp. 13295-13301. https://pubs.acs.org/doi/10.1021/acs.jpcc.3c02415.
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