Journal of Physical Chemistry C, volume 125, issue 48, pages 26814-26822

Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy

Aladyshkin A.Y ^{1, 2}

Aladyshkina Anna S ³

Bozhko Sergey I ⁴

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Institute for Physics of Microstructures RAS, GSP-105, Nizhny Novgorod 603950, Russia |

Lobachevsky State University of Nizhny Novgorod, Gagarin Avenue 23, Nizhny Novgorod 603022, Russia |

HSE University, 25/12 Bolshaya Pecherskaya Ulitsa, Nizhny Novgorod 603155, Russia |

⁴

Osipyan Institute of Solid State Physics RAS, Academician Ossypian Street 2, Chernogolovka, Moscow district, 142432, Russia |

Publication type: Journal Article

Publication date: 2021-11-24

American Chemical Society (ACS)

Journal: Journal of Physical Chemistry C

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Impact factor: 3.7

ISSN: 19327447, 19327455

DOI: 10.1021/acs.jpcc.1c07705

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Surfaces, Coatings and Films

Electronic, Optical and Magnetic Materials

Physical and Theoretical Chemistry

General Energy

Abstract

Local electronic properties of quasi-two-dimensional Pb(111) islands with screw dislocations of different types on their surfaces were experimentally studied by means of low-temperature scanning tunneling microscopy and spectroscopy in the regime of constant current. A comparison of the topography map, the maps of tunneling current variation and the differential tunneling conductance acquired simultaneously allows one to visualize the hidden parts of the dislocation loops under the sample surface. We demonstrate that two closely-positioned screw dislocations with the opposite Burgers vectors can either (i) connect to each other by the sub-surface dislocation loop or (ii) generate independent hidden edge dislocation lines which run towards the perimeter of the Pb island. In addition, we found a screw dislocation, which does not produce outcoming sub-surface dislocation loops. Screw dislocations and the hidden dislocations lines are the source of the non-quantized variation of the local thickness of the Pb terraces, affecting the local electronic properties.

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Journal of Physical Chemistry C	Journal of Physical Chemistry C, 2, 66.67% Journal of Physical Chemistry C 2 publications, 66.67%
Nanomaterials	Nanomaterials, 1, 33.33% Nanomaterials 1 publication, 33.33%
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	1 2
American Chemical Society (ACS)	American Chemical Society (ACS), 2, 66.67% American Chemical Society (ACS) 2 publications, 66.67%
Multidisciplinary Digital Publishing Institute (MDPI)	Multidisciplinary Digital Publishing Institute (MDPI), 1, 33.33% Multidisciplinary Digital Publishing Institute (MDPI) 1 publication, 33.33%
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Aladyshkin A. et al. Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy // Journal of Physical Chemistry C. 2021. Vol. 125. No. 48. pp. 26814-26822.

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Aladyshkin A., Aladyshkina A. S., Bozhko S. I. Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy // Journal of Physical Chemistry C. 2021. Vol. 125. No. 48. pp. 26814-26822.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1021/acs.jpcc.1c07705

UR - https://doi.org/10.1021%2Facs.jpcc.1c07705

TI - Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy

T2 - Journal of Physical Chemistry C

AU - Aladyshkina, Anna S

AU - Bozhko, Sergey I

AU - Aladyshkin, A.Y

PY - 2021

DA - 2021/11/24 00:00:00

PB - American Chemical Society (ACS)

SP - 26814-26822

IS - 48

VL - 125

SN - 1932-7447

SN - 1932-7455

ER -

BibTex |

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BibTex Copy

@article{2021_Aladyshkin,

author = {Anna S Aladyshkina and Sergey I Bozhko and A.Y Aladyshkin},

title = {Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy},

journal = {Journal of Physical Chemistry C},

year = {2021},

volume = {125},

publisher = {American Chemical Society (ACS)},

month = {nov},

url = {https://doi.org/10.1021%2Facs.jpcc.1c07705},

number = {48},

pages = {26814--26822},

doi = {10.1021/acs.jpcc.1c07705}

}

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Aladyshkin, A.Y, et al. “Observation of Hidden Parts of Dislocation Loops in Thin Pb Films by Means of Scanning Tunneling Spectroscopy.” Journal of Physical Chemistry C, vol. 125, no. 48, Nov. 2021, pp. 26814-26822. https://doi.org/10.1021%2Facs.jpcc.1c07705.

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Publisher

American Chemical Society (ACS)

Journal

Journal of Physical Chemistry C

Quartile SCImago

Quartile WOS

Impact factor

3.7

ISSN

19327447 (Print)
19327455 (Electronic)

Profiles

Aladyshkin, Alexey Yu