Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)

Analysis of the point-contact spectroscopy (PCS) data on the new dramatic high-Tc superconductor
 magnesium diboride MgB₂ reveals quite different behavior of two disconnected σ and π electronic
 bands, deriving from their anisotropy, different dimensionality, and electron—phonon in...

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Veröffentlicht in:Физика низких температур
Datum:2004
Hauptverfasser: Yanson, I.K., Naidyuk, Yu.G.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2004
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Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/119508
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Zitieren:Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article) / I.K. Yanson, Yu.G. Naidyuk // Физика низких температур. — 2004. — Т. 30, № 4. — С. 355-372. — Бібліогр.: 54 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Yanson, I.K.
Naidyuk, Yu.G.
author_facet Yanson, I.K.
Naidyuk, Yu.G.
citation_txt Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article) / I.K. Yanson, Yu.G. Naidyuk // Физика низких температур. — 2004. — Т. 30, № 4. — С. 355-372. — Бібліогр.: 54 назв. — англ.
collection DSpace DC
container_title Физика низких температур
description Analysis of the point-contact spectroscopy (PCS) data on the new dramatic high-Tc superconductor
 magnesium diboride MgB₂ reveals quite different behavior of two disconnected σ and π electronic
 bands, deriving from their anisotropy, different dimensionality, and electron—phonon interaction.
 PCS allows direct registration of both the superconducting gaps and electron—phonon
 interaction spectral function of the two-dimensional σ and three-dimensional π band, establishing
 correlation between the gap value and intensity of the high-Tc driving force — the E₂g boron vibration
 mode. PCS data on some nonsuperconducting transition-metal diborides are surveyed for comparison.
first_indexed 2025-11-30T16:33:55Z
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 2025-11-30T16:33:55Z
publishDate 2004
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
record_format dspace
spelling Yanson, I.K.
Naidyuk, Yu.G.
2017-06-07T07:19:10Z
2017-06-07T07:19:10Z
2004
Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article) / I.K. Yanson, Yu.G. Naidyuk // Физика низких температур. — 2004. — Т. 30, № 4. — С. 355-372. — Бібліогр.: 54 назв. — англ.
0132-6414
PACS: 74.25.Fy, 74.80.Fp, 73.40.Jn
https://nasplib.isofts.kiev.ua/handle/123456789/119508
Analysis of the point-contact spectroscopy (PCS) data on the new dramatic high-Tc superconductor
 magnesium diboride MgB₂ reveals quite different behavior of two disconnected σ and π electronic
 bands, deriving from their anisotropy, different dimensionality, and electron—phonon interaction.
 PCS allows direct registration of both the superconducting gaps and electron—phonon
 interaction spectral function of the two-dimensional σ and three-dimensional π band, establishing
 correlation between the gap value and intensity of the high-Tc driving force — the E₂g boron vibration
 mode. PCS data on some nonsuperconducting transition-metal diborides are surveyed for comparison.
The authors are grateful to N.L. Bobrov, P.N.
 Chubov, V.V. Fisun, O.E. Kvitnitskaya, L.V. Tyutrina
 for collaboration during the MgB2 investigation.
 IKY thanks the Institute of Solid State Physics in For-
 schungzentrum Karlsruhe for hospitality, and Prof.
 H. von Löhneysen for constant support. The work in
 Ukraine was supported by the State Foundation of
 Fundamental Research under Grant F7/528-2001.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Обзоp
Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
Article
published earlier
spellingShingle Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
Yanson, I.K.
Naidyuk, Yu.G.
Обзоp
title Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
title_full Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
title_fullStr Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
title_full_unstemmed Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
title_short Advances in point-contact spectroscopy: two-band superconductor MgB₂ (Review Article)
title_sort advances in point-contact spectroscopy: two-band superconductor mgb₂ (review article)
topic Обзоp
topic_facet Обзоp
url https://nasplib.isofts.kiev.ua/handle/123456789/119508
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AT naidyukyug advancesinpointcontactspectroscopytwobandsuperconductormgb2reviewarticle