Abrikosov and the path to understanding high-Tc superconductivity
An early attempt to try to understand the high superconducting transition temperatures in the cuprate super-conductors was Abrikosov's theory of extended Van Hove singularities. It was based on our early experimental data on the YBa₂Cu₃O₆.₉ and YBa₂Cu₄O₈ compounds which showed an extended saddl...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2018 |
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| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Zitieren: | Abrikosov and the path to understanding high-Tc superconductivity / Juan Carlos Campuzano // Физика низких температур. — 2018. — Т. 44, № 6. — С. 658-662. — Бібліогр.: 16 назв. — англ. |
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Juan Carlos Campuzano 2021-02-03T19:03:20Z 2021-02-03T19:03:20Z 2018 Abrikosov and the path to understanding high-Tc superconductivity / Juan Carlos Campuzano // Физика низких температур. — 2018. — Т. 44, № 6. — С. 658-662. — Бібліогр.: 16 назв. — англ. 0132-6414 PACS: 74.72.–h, 74.25.Jb https://nasplib.isofts.kiev.ua/handle/123456789/176149 An early attempt to try to understand the high superconducting transition temperatures in the cuprate super-conductors was Abrikosov's theory of extended Van Hove singularities. It was based on our early experimental data on the YBa₂Cu₃O₆.₉ and YBa₂Cu₄O₈ compounds which showed an extended saddle point singularity in the dispersion of the electronic excitations. This appeared to lead to a Van Hove singularity in the density of states with a divergence stronger than the known logarithmic one observed in conventional materials. The consequent high density of states of the extended singularity was thought to lead to high Tc's in a conventional BCS mechanism. Unfortunately, it was soon realized that the very incoherent nature of the electronic excitations in these materials did not provide the expected high density of states. Here we summarize the many unusual characteristics of the electronic excitations in the cuprates, and what they imply for a possible theoretical description of hight-temperature superconductivity. The work summarized here could not have possibly come to fruition without each one of the experimental collaborators over nearly three decades, each having played crucial roles in the study of the cuprate superconductors. However, I would like to particularly thank theoreticians Alexei Abrikosov, Mohit Randeria and Michael Norman, who had the most impact in helping us experimentalists understand the significance of our results. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова Abrikosov and the path to understanding high-Tc superconductivity Article published earlier |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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| title |
Abrikosov and the path to understanding high-Tc superconductivity |
| spellingShingle |
Abrikosov and the path to understanding high-Tc superconductivity Juan Carlos Campuzano Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| title_short |
Abrikosov and the path to understanding high-Tc superconductivity |
| title_full |
Abrikosov and the path to understanding high-Tc superconductivity |
| title_fullStr |
Abrikosov and the path to understanding high-Tc superconductivity |
| title_full_unstemmed |
Abrikosov and the path to understanding high-Tc superconductivity |
| title_sort |
abrikosov and the path to understanding high-tc superconductivity |
| author |
Juan Carlos Campuzano |
| author_facet |
Juan Carlos Campuzano |
| topic |
Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| topic_facet |
Специальный выпуск К 90-летию со дня рождения A.A. Абрикосова |
| publishDate |
2018 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
An early attempt to try to understand the high superconducting transition temperatures in the cuprate super-conductors was Abrikosov's theory of extended Van Hove singularities. It was based on our early experimental data on the YBa₂Cu₃O₆.₉ and YBa₂Cu₄O₈ compounds which showed an extended saddle point singularity in the dispersion of the electronic excitations. This appeared to lead to a Van Hove singularity in the density of states with a divergence stronger than the known logarithmic one observed in conventional materials. The consequent high density of states of the extended singularity was thought to lead to high Tc's in a conventional BCS mechanism. Unfortunately, it was soon realized that the very incoherent nature of the electronic excitations in these materials did not provide the expected high density of states. Here we summarize the many unusual characteristics of the electronic excitations in the cuprates, and what they imply for a possible theoretical description of hight-temperature superconductivity.
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| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176149 |
| citation_txt |
Abrikosov and the path to understanding high-Tc superconductivity / Juan Carlos Campuzano // Физика низких температур. — 2018. — Т. 44, № 6. — С. 658-662. — Бібліогр.: 16 назв. — англ. |
| work_keys_str_mv |
AT juancarloscampuzano abrikosovandthepathtounderstandinghightcsuperconductivity |
| first_indexed |
2025-12-01T14:01:10Z |
| last_indexed |
2025-12-01T14:01:10Z |
| _version_ |
1850860360082391040 |