How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?

The bias-voltage, V, dependences of the differential tunnel conductance G(V) = dJ/DV were calculated for the quasiparticle current J flowing in the ab plane across the break junction made of d-wave superconductors. The tunnel directionality effect was taken into account by introducing an effective t...

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Опубліковано в: :Физика низких температур
Дата:2017
Автори: Gabovich, A.M., Voitenko, A.I.
Формат: Стаття
Мова:Англійська
Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2017
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Онлайн доступ:https://nasplib.isofts.kiev.ua/handle/123456789/175219
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors? / A.M. Gabovich, A.I. Voitenko // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1471-1481. — Бібліогр.: 119 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Gabovich, A.M.
Voitenko, A.I.
author_facet Gabovich, A.M.
Voitenko, A.I.
citation_txt How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors? / A.M. Gabovich, A.I. Voitenko // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1471-1481. — Бібліогр.: 119 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description The bias-voltage, V, dependences of the differential tunnel conductance G(V) = dJ/DV were calculated for the quasiparticle current J flowing in the ab plane across the break junction made of d-wave superconductors. The tunnel directionality effect was taken into account by introducing an effective tunneling cone described by the angle 2θ₀. It was shown that G(V) looks like predominantly d-wave or isotropic s-wave ones, depending on the magnitude of θ₀ and the rotation angles of the crystal lattices of electrodes with respect to the junction plane. In certain configurations, the G(V) dependences of nominally symmetric S-I-S junctions may turn out similar to those for non-symmetric S–I–N junctions (here, S, I, and N denote superconductors, insulators, and normal metals, respectively) and provide misleading information about the actual energy gap. At finite temperatures, sub-gap structures appear, which possess features appropriate to both d- and s-wave superconductors and are dependent on the problem parameters.
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language English
last_indexed 2025-11-24T02:52:41Z
publishDate 2017
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Gabovich, A.M.
Voitenko, A.I.
2021-01-31T15:57:48Z
2021-01-31T15:57:48Z
2017
How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors? / A.M. Gabovich, A.I. Voitenko // Физика низких температур. — 2017. — Т. 43, № 10. — С. 1471-1481. — Бібліогр.: 119 назв. — англ.
0132-6414
PACS: 74.20.Rp, 74.55.+v, 74.72.–h
https://nasplib.isofts.kiev.ua/handle/123456789/175219
The bias-voltage, V, dependences of the differential tunnel conductance G(V) = dJ/DV were calculated for the quasiparticle current J flowing in the ab plane across the break junction made of d-wave superconductors. The tunnel directionality effect was taken into account by introducing an effective tunneling cone described by the angle 2θ₀. It was shown that G(V) looks like predominantly d-wave or isotropic s-wave ones, depending on the magnitude of θ₀ and the rotation angles of the crystal lattices of electrodes with respect to the junction plane. In certain configurations, the G(V) dependences of nominally symmetric S-I-S junctions may turn out similar to those for non-symmetric S–I–N junctions (here, S, I, and N denote superconductors, insulators, and normal metals, respectively) and provide misleading information about the actual energy gap. At finite temperatures, sub-gap structures appear, which possess features appropriate to both d- and s-wave superconductors and are dependent on the problem parameters.
The work was partially supported by the Project No. 24 of the 2015–2017 Scientific Cooperation Agreement between Poland and Ukraine.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Свеpхпpоводимость, в том числе высокотемпеpатуpная
How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
Article
published earlier
spellingShingle How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
Gabovich, A.M.
Voitenko, A.I.
Свеpхпpоводимость, в том числе высокотемпеpатуpная
title How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
title_full How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
title_fullStr How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
title_full_unstemmed How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
title_short How does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
title_sort how does the break-junction quasiparticle tunnel conductance look like for d-wave superconductors?
topic Свеpхпpоводимость, в том числе высокотемпеpатуpная
topic_facet Свеpхпpоводимость, в том числе высокотемпеpатуpная
url https://nasplib.isofts.kiev.ua/handle/123456789/175219
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AT voitenkoai howdoesthebreakjunctionquasiparticletunnelconductancelooklikefordwavesuperconductors