Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again
While the beginning decade of the high-Tc cuprates era passed under domination of local theories, Abrikosov was one of the few who took seriously the electronic band structure of cuprates, stressing the importance of an extended Van Hove singularity near the Fermi level. These ideas have not been wi...
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| Опубліковано в: : | Физика низких температур |
|---|---|
| Дата: | 2018 |
| Автор: | |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/176140 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again / A.A. Kordyuk // Физика низких температур. — 2018. — Т. 44, № 6. — С. 623-634. — Бібліогр.: 152 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862684533646688256 |
|---|---|
| author | Kordyuk, A.A. |
| author_facet | Kordyuk, A.A. |
| citation_txt | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again / A.A. Kordyuk // Физика низких температур. — 2018. — Т. 44, № 6. — С. 623-634. — Бібліогр.: 152 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | While the beginning decade of the high-Tc cuprates era passed under domination of local theories, Abrikosov was one of the few who took seriously the electronic band structure of cuprates, stressing the importance of an extended Van Hove singularity near the Fermi level. These ideas have not been widely accepted that time mainly because of a lack of experimental evidence for correlation between saddle point position and superconductivity. In this short contribution, based on the detailed comparison of the electronic band structures of different families of cuprates and iron-based superconductors I argue that a general mechanism of the Tc enhancement in all known high-Tc superconductors is likely related with the proximity of certain Van Hove singularities to the Fermi level. While this mechanism remains to be fully understood, one may conclude that it is not related with the electron density of states but likely with some kind of resonances caused by a proximity of the Fermi surface to topological Lifshitz transition. One may also notice that the electronic correlations often shift the electronic bands to optimal for superconductivity positions.
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| first_indexed | 2025-12-07T15:59:06Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-176140 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T15:59:06Z |
| publishDate | 2018 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Kordyuk, A.A. 2021-02-03T18:42:29Z 2021-02-03T18:42:29Z 2018 Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again / A.A. Kordyuk // Физика низких температур. — 2018. — Т. 44, № 6. — С. 623-634. — Бібліогр.: 152 назв. — англ. 0132-6414 PACS: 74.20.–z, 74.25.Jb, 74.70.Xa, 74.72.–h, 79.60.–i https://nasplib.isofts.kiev.ua/handle/123456789/176140 While the beginning decade of the high-Tc cuprates era passed under domination of local theories, Abrikosov was one of the few who took seriously the electronic band structure of cuprates, stressing the importance of an extended Van Hove singularity near the Fermi level. These ideas have not been widely accepted that time mainly because of a lack of experimental evidence for correlation between saddle point position and superconductivity. In this short contribution, based on the detailed comparison of the electronic band structures of different families of cuprates and iron-based superconductors I argue that a general mechanism of the Tc enhancement in all known high-Tc superconductors is likely related with the proximity of certain Van Hove singularities to the Fermi level. While this mechanism remains to be fully understood, one may conclude that it is not related with the electron density of states but likely with some kind of resonances caused by a proximity of the Fermi surface to topological Lifshitz transition. One may also notice that the electronic correlations often shift the electronic bands to optimal for superconductivity positions. I acknowledge discussions with A. Abrikosov, L. Alff,
 A. Avella, A. Bianconi, B. Büchner, S. V. Borisenko, V.
 Brouet, A.V. Chubukov, T. Dahm, C. Di Castro, I. Eremin,
 D.V. Evtushinsky, J. Fink, A.M. Gabovich, M.S. Golden,
 M. Grilli, D.S. Inosov, I.N. Karnaukhov, A.L. Kasatkin,
 T.K. Kim, M.M. Korshunov, V.M. Krasnov, A. Lichtenstein, V.M. Loktev, R. Markiewicz, I.V. Morozov, S.G.
 Ovchinnikov, E.A. Pashitskii, N.M. Plakida, V.M.
 Pudalov, Yu.V. Pustovit, M.V. Sadovskii, D.J. Scalapino,
 A.V. Semenov, J. Spałek, T. Valla, A.A. Varlamov, A.N.
 Vasiliev, A.N. Yaresko, and V.B. Zabolotnyy. The project
 was supported by the Ukrainian-German grant from the
 MES of Ukraine (Project M/20-2017) and by the project
 No. 6250 by STCU and NAS of Ukraine. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again Article published earlier |
| spellingShingle | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again Kordyuk, A.A. |
| title | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| title_full | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| title_fullStr | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| title_full_unstemmed | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| title_short | Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| title_sort | electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/176140 |
| work_keys_str_mv | AT kordyukaa electronicbandstructureofoptimalsuperconductorsfromcupratestoferropnictidesandbackagain |