The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface

It is shown that the conductance G of a quantum microconstriction in a metal with an open Fermi surface undergoes jumps e²/h of the opposite sign as a function of the contact diameter. The negative jumps are a result of the limitation of the energy of the electron motion along the direction in which...

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Published in:Физика низких температур
Date:2000
Main Authors: Namiranian, A., Kolesnichenko, A.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2000
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Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/129108
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface / A. Namiranian, A. Kolesnichenko // Физика низких температур. — 2000. — Т. 26, № 7. — С. 700-704. — Бібліогр.: 27 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Namiranian, A.
Kolesnichenko, A.
author_facet Namiranian, A.
Kolesnichenko, A.
citation_txt The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface / A. Namiranian, A. Kolesnichenko // Физика низких температур. — 2000. — Т. 26, № 7. — С. 700-704. — Бібліогр.: 27 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description It is shown that the conductance G of a quantum microconstriction in a metal with an open Fermi surface undergoes jumps e²/h of the opposite sign as a function of the contact diameter. The negative jumps are a result of the limitation of the energy of the electron motion along the direction in which the Fermi surface is open. The point contact spectrum dG/dV of such a constriction has additional peaks at the bias eV where the maximum energy εmaxεmax of the quantum subband is equal to the energies εF±eV/2 (εF is the Fermi energy).
first_indexed 2025-12-07T18:33:47Z
format Article
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institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 0132-6414
language English
last_indexed 2025-12-07T18:33:47Z
publishDate 2000
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Namiranian, A.
Kolesnichenko, A.
2018-01-16T13:26:47Z
2018-01-16T13:26:47Z
2000
The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface / A. Namiranian, A. Kolesnichenko // Физика низких температур. — 2000. — Т. 26, № 7. — С. 700-704. — Бібліогр.: 27 назв. — англ.
0132-6414
PACS: 73.40.Jn, 72.15.Eb
https://nasplib.isofts.kiev.ua/handle/123456789/129108
It is shown that the conductance G of a quantum microconstriction in a metal with an open Fermi surface undergoes jumps e²/h of the opposite sign as a function of the contact diameter. The negative jumps are a result of the limitation of the energy of the electron motion along the direction in which the Fermi surface is open. The point contact spectrum dG/dV of such a constriction has additional peaks at the bias eV where the maximum energy εmaxεmax of the quantum subband is equal to the energies εF±eV/2 (εF is the Fermi energy).
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Электpонные свойства металлов и сплавов
The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
Article
published earlier
spellingShingle The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
Namiranian, A.
Kolesnichenko, A.
Электpонные свойства металлов и сплавов
title The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
title_full The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
title_fullStr The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
title_full_unstemmed The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
title_short The quantum conductance of ballistic microconstrictions in metals with an open Fermi surface
title_sort quantum conductance of ballistic microconstrictions in metals with an open fermi surface
topic Электpонные свойства металлов и сплавов
topic_facet Электpонные свойства металлов и сплавов
url https://nasplib.isofts.kiev.ua/handle/123456789/129108
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AT kolesnichenkoa thequantumconductanceofballisticmicroconstrictionsinmetalswithanopenfermisurface
AT namiraniana quantumconductanceofballisticmicroconstrictionsinmetalswithanopenfermisurface
AT kolesnichenkoa quantumconductanceofballisticmicroconstrictionsinmetalswithanopenfermisurface