Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox
We report an unusual persistence of superconductivity against high magnetic fields in the iron-chalcogenide film FeTe:Ox below ≈ 2.5 K. Instead of saturating like a mean-field behavior with a single order parameter, the measured low-temperature upper critical field increases progressively, sugge...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2013 |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2013
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| Zitieren: | Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox / I.K. Dimitrov, W.D. Si, W. Ku, S.J. Han, J. Jaroszynski // Физика низких температур. — 2013. — Т. 39, № 8. — С. 879–884. — Бібліогр.: 35 назв. — англ. |
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Dimitrov, I.K. Si, W.D. Ku, W. Han, S.J. Jaroszynski, J. 2017-05-30T18:28:01Z 2017-05-30T18:28:01Z 2013 Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox / I.K. Dimitrov, W.D. Si, W. Ku, S.J. Han, J. Jaroszynski // Физика низких температур. — 2013. — Т. 39, № 8. — С. 879–884. — Бібліогр.: 35 назв. — англ. 0132-6414 PACS: 74.70.Xa, 74.20.Mn, 74.25.Dw https://nasplib.isofts.kiev.ua/handle/123456789/118647 We report an unusual persistence of superconductivity against high magnetic fields in the iron-chalcogenide film FeTe:Ox below ≈ 2.5 K. Instead of saturating like a mean-field behavior with a single order parameter, the measured low-temperature upper critical field increases progressively, suggesting a large supply of superconducting states accessible via magnetic field or low-energy thermal fluctuations. We demonstrate that superconducting states of finite momenta can be realized within the conventional theory, despite its questionable applicability. Our findings reveal a fundamental characteristic of superconductivity and electronic structure in the strongly-correlated iron-based superconductors. The work at Brookhaven National Laboratory was supported by the Office of Science, U.S. Department of Energy, Materials Sciences and Engineering Division, under Contract No. DE-AC02-98CH10886. A portion of this work was performed at the National High Magnetic Field Laboratory, which is supported by NSF Cooperative Agreement No. DMR-1157490 by the State of Florida, and by the DOE. I.K.D. wishes to thank Vyacheslav Solovyov and Silvia Haindl for critical reading of the manuscript and helpful suggestions. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Сверхпроводимость, в том числе высокотемпературная Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox |
| spellingShingle |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox Dimitrov, I.K. Si, W.D. Ku, W. Han, S.J. Jaroszynski, J. Сверхпроводимость, в том числе высокотемпературная |
| title_short |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox |
| title_full |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox |
| title_fullStr |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox |
| title_full_unstemmed |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox |
| title_sort |
unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film fete:ox |
| author |
Dimitrov, I.K. Si, W.D. Ku, W. Han, S.J. Jaroszynski, J. |
| author_facet |
Dimitrov, I.K. Si, W.D. Ku, W. Han, S.J. Jaroszynski, J. |
| topic |
Сверхпроводимость, в том числе высокотемпературная |
| topic_facet |
Сверхпроводимость, в том числе высокотемпературная |
| publishDate |
2013 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
We report an unusual persistence of superconductivity against high magnetic fields in the iron-chalcogenide
film FeTe:Ox below ≈ 2.5 K. Instead of saturating like a mean-field behavior with a single order parameter, the
measured low-temperature upper critical field increases progressively, suggesting a large supply of superconducting
states accessible via magnetic field or low-energy thermal fluctuations. We demonstrate that superconducting
states of finite momenta can be realized within the conventional theory, despite its questionable
applicability. Our findings reveal a fundamental characteristic of superconductivity and electronic structure in
the strongly-correlated iron-based superconductors.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/118647 |
| citation_txt |
Unusual persistence of superconductivity against high magnetic fields in the strongly-correlated iron-chalcogenide film FeTe:Ox / I.K. Dimitrov, W.D. Si, W. Ku, S.J. Han, J. Jaroszynski // Физика низких температур. — 2013. — Т. 39, № 8. — С. 879–884. — Бібліогр.: 35 назв. — англ. |
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2025-12-07T16:04:17Z |
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2025-12-07T16:04:17Z |
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