Tunneling spectra of break junctions involving Nb₃Sn
The electronic gap structure of Nb3Sn was measured by the break-junction (BJ) tunneling technique. The superconducting gap values are estimated to be in the range 2∆ = 4–5.5 meV at T = 4.2 K as follows from the observed distinct conductance peaks. In addition to the superconducting gap structure,...
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| Date: | 2014 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2014
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| Series: | Физика низких температур |
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119668 |
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| Cite this: | Tunneling spectra of break junctions involving Nb₃Sn / Toshikazu Ekino, Akira Sugimoto, Yuta Sakai, A.M. Gabovich, Jun Akimitsu // Физика низких температур. — 2014. — Т. 40, № 10. — С. 1182-1186. — Бібліогр.: 24 назв. — англ. |
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nasplib_isofts_kiev_ua-123456789-1196682025-02-09T12:29:35Z Tunneling spectra of break junctions involving Nb₃Sn Ekino, Toshikazu Sugimoto, Akira Sakai, Yuta Gabovich, A.M. Akimitsu, Jun III Международный семинар по микроконтактной спектроскопии The electronic gap structure of Nb3Sn was measured by the break-junction (BJ) tunneling technique. The superconducting gap values are estimated to be in the range 2∆ = 4–5.5 meV at T = 4.2 K as follows from the observed distinct conductance peaks. In addition to the superconducting gap structure, we observed reproducible hump-like structures at the biases of about ± 20 and ± 50 mV. Such a coexistence of gap and hump structures resembles the situation found in the high-Tc copper-oxide superconductors. Above the superconducting critical temperature Tc ~ 18 K, the humps appear as the only gap-like structures. Their possible origin is discussed in connection to the structural phase transition occurring in Nb₃Sn. This work was supported by a Grand-in-Aid for Scientific Research (245403770) of the Japan Society for the Promotion of Science (JSPS). The work was partially supported by the Project No. 8 of the 2012-2014 Scientific Cooperation Agreement between Poland and Ukraine. 2014 Article Tunneling spectra of break junctions involving Nb₃Sn / Toshikazu Ekino, Akira Sugimoto, Yuta Sakai, A.M. Gabovich, Jun Akimitsu // Физика низких температур. — 2014. — Т. 40, № 10. — С. 1182-1186. — Бібліогр.: 24 назв. — англ. 0132-6414 PACS 74.55.+v, 74.70.Ad, 71.20.–b, 74.81.Fa, 81.30.Kf https://nasplib.isofts.kiev.ua/handle/123456789/119668 en Физика низких температур application/pdf Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
III Международный семинар по микроконтактной спектроскопии III Международный семинар по микроконтактной спектроскопии |
| spellingShingle |
III Международный семинар по микроконтактной спектроскопии III Международный семинар по микроконтактной спектроскопии Ekino, Toshikazu Sugimoto, Akira Sakai, Yuta Gabovich, A.M. Akimitsu, Jun Tunneling spectra of break junctions involving Nb₃Sn Физика низких температур |
| description |
The electronic gap structure of Nb3Sn was measured by the break-junction (BJ) tunneling technique. The superconducting
gap values are estimated to be in the range 2∆ = 4–5.5 meV at T = 4.2 K as follows from the observed
distinct conductance peaks. In addition to the superconducting gap structure, we observed reproducible
hump-like structures at the biases of about ± 20 and ± 50 mV. Such a coexistence of gap and hump structures resembles
the situation found in the high-Tc copper-oxide superconductors. Above the superconducting critical
temperature Tc ~ 18 K, the humps appear as the only gap-like structures. Their possible origin is discussed in
connection to the structural phase transition occurring in Nb₃Sn. |
| format |
Article |
| author |
Ekino, Toshikazu Sugimoto, Akira Sakai, Yuta Gabovich, A.M. Akimitsu, Jun |
| author_facet |
Ekino, Toshikazu Sugimoto, Akira Sakai, Yuta Gabovich, A.M. Akimitsu, Jun |
| author_sort |
Ekino, Toshikazu |
| title |
Tunneling spectra of break junctions involving Nb₃Sn |
| title_short |
Tunneling spectra of break junctions involving Nb₃Sn |
| title_full |
Tunneling spectra of break junctions involving Nb₃Sn |
| title_fullStr |
Tunneling spectra of break junctions involving Nb₃Sn |
| title_full_unstemmed |
Tunneling spectra of break junctions involving Nb₃Sn |
| title_sort |
tunneling spectra of break junctions involving nb₃sn |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2014 |
| topic_facet |
III Международный семинар по микроконтактной спектроскопии |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/119668 |
| citation_txt |
Tunneling spectra of break junctions involving Nb₃Sn / Toshikazu Ekino, Akira Sugimoto, Yuta Sakai, A.M. Gabovich, Jun Akimitsu // Физика низких температур. — 2014. — Т. 40, № 10. — С. 1182-1186. — Бібліогр.: 24 назв. — англ. |
| series |
Физика низких температур |
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| first_indexed |
2025-11-25T23:52:47Z |
| last_indexed |
2025-11-25T23:52:47Z |
| _version_ |
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