JETP Letters, volume 109, issue 11, pages 755-761
Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films
Publication type: Journal Article
Publication date: 2019-06-01
Journal:
JETP Letters
Quartile SCImago
Q2
Quartile WOS
Q4
Impact factor: 1.3
ISSN: 00213640, 10906487
Physics and Astronomy (miscellaneous)
Abstract
The spatial dependence of the differential conductivity of ultrathin Pb films deposited on the Si(111)7 × 7 surface has been studied by low-temperature scanning tunneling microscopy and spectroscopy. Pb films are characterized by the presence of quantum-confined states for conduction electrons and, correspondingly, maxima of the differential tunneling conductivity. The energy of these states is determined mainly by the local thickness of the Pb layer. It has been found that the tunneling conductivity within atomically smooth terraces can be spatially inhomogeneous, and the period of small-scale modulation coincides with the period of the Si(111)7 × 7 reconstruction. Large-scale inhomogeneities of the tunneling conductivity have been detected in sufficiently thick Pb films. They are manifested in the gradual shift of the quantum-confined levels by about 50 meV at a distance of about 100 nm. Such inhomogeneities of the tunneling conductivity and, correspondingly, the density of states in Pb films can be attributed to the presence of intrinsic defects of the crystal structure, e.g., local electrical potentials and stresses.
Citations by journals
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Journal of Physical Chemistry C
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Journal of Physical Chemistry C
3 publications, 75%
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Journal of Physics Condensed Matter
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Journal of Physics Condensed Matter
1 publication, 25%
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Citations by publishers
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American Chemical Society (ACS)
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American Chemical Society (ACS)
3 publications, 75%
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IOP Publishing
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IOP Publishing
1 publication, 25%
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Putilov A. V. et al. Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films // JETP Letters. 2019. Vol. 109. No. 11. pp. 755-761.
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Putilov A. V., Ustavschikov S. S., Bozhko S. I., Aladyshkin A. Y. Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films // JETP Letters. 2019. Vol. 109. No. 11. pp. 755-761.
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TY - JOUR
DO - 10.1134/s0021364019110134
UR - https://doi.org/10.1134%2Fs0021364019110134
TI - Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films
T2 - JETP Letters
AU - Putilov, A. V.
AU - Ustavschikov, S S
AU - Bozhko, S I
AU - Aladyshkin, A. Yu.
PY - 2019
DA - 2019/06/01 00:00:00
PB - Pleiades Publishing
SP - 755-761
IS - 11
VL - 109
SN - 0021-3640
SN - 1090-6487
ER -
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@article{2019_Putilov,
author = {A. V. Putilov and S S Ustavschikov and S I Bozhko and A. Yu. Aladyshkin},
title = {Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films},
journal = {JETP Letters},
year = {2019},
volume = {109},
publisher = {Pleiades Publishing},
month = {jun},
url = {https://doi.org/10.1134%2Fs0021364019110134},
number = {11},
pages = {755--761},
doi = {10.1134/s0021364019110134}
}
Cite this
MLA
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Putilov, A. V., et al. “Nonuniform Quantum-Confined States and Visualization of Hidden Defects in Pb(111) Films.” JETP Letters, vol. 109, no. 11, Jun. 2019, pp. 755-761. https://doi.org/10.1134%2Fs0021364019110134.
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