Dynamics of electronic excitations in YBCO at low temperatures
We present the results of low-temperature optical experiments (absorption and reflection) in visible and middle infrared frequency regions with epitaxial films of copper oxide materials like a Y₁Ba₂Cu₃O₆₊ₓ. Based on our data and reference data, we consider the anomalous spectral effects in HTSC havi...
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| Published in: | Физика низких температур |
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| Date: | 1999 |
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| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
1999
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/137768 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Dynamics of electronic excitations in YBCO at low temperatures / I.Ya. Fugol, V.N. Samovarov, M.Yu. Libin // Физика низких температур. — 1999. — Т. 25, № 5. — С. 459-468. — Бібліогр.: 33 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862719803032076288 |
|---|---|
| author | Fugol, I.Ya. Samovarov, V.N. Libin, M.Yu. |
| author_facet | Fugol, I.Ya. Samovarov, V.N. Libin, M.Yu. |
| citation_txt | Dynamics of electronic excitations in YBCO at low temperatures / I.Ya. Fugol, V.N. Samovarov, M.Yu. Libin // Физика низких температур. — 1999. — Т. 25, № 5. — С. 459-468. — Бібліогр.: 33 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We present the results of low-temperature optical experiments (absorption and reflection) in visible and middle infrared frequency regions with epitaxial films of copper oxide materials like a Y₁Ba₂Cu₃O₆₊ₓ. Based on our data and reference data, we consider the anomalous spectral effects in HTSC having no analogy with conventional BCS superconductors: (1) the optical response to superconducting transition at Tc; (2) the spectral weight redistribution induced by chemical doping and temperature; (3) the drastic enhancement of low-temperature photodoping; (4) the long spin-structure relaxation via temperature variations seen in the optical spectra. The thorough analysis of the results obtained is fully compatible with the concept of two-component system of light and heavy carriers (holes), being in dynamical coexistence with each other. The dynamical coexistence of the intraband carriers occurs on the background of strongly correlation interrelation of the heavy quasiparticles with the optical interband (charge transfer) excitations.
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| first_indexed | 2025-12-07T18:22:21Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-137768 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T18:22:21Z |
| publishDate | 1999 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
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| spelling | Fugol, I.Ya. Samovarov, V.N. Libin, M.Yu. 2018-06-17T16:08:45Z 2018-06-17T16:08:45Z 1999 Dynamics of electronic excitations in YBCO at low temperatures / I.Ya. Fugol, V.N. Samovarov, M.Yu. Libin // Физика низких температур. — 1999. — Т. 25, № 5. — С. 459-468. — Бібліогр.: 33 назв. — англ. 0132-6414 https://nasplib.isofts.kiev.ua/handle/123456789/137768 We present the results of low-temperature optical experiments (absorption and reflection) in visible and middle infrared frequency regions with epitaxial films of copper oxide materials like a Y₁Ba₂Cu₃O₆₊ₓ. Based on our data and reference data, we consider the anomalous spectral effects in HTSC having no analogy with conventional BCS superconductors: (1) the optical response to superconducting transition at Tc; (2) the spectral weight redistribution induced by chemical doping and temperature; (3) the drastic enhancement of low-temperature photodoping; (4) the long spin-structure relaxation via temperature variations seen in the optical spectra. The thorough analysis of the results obtained is fully compatible with the concept of two-component system of light and heavy carriers (holes), being in dynamical coexistence with each other. The dynamical coexistence of the intraband carriers occurs on the background of strongly correlation interrelation of the heavy quasiparticles with the optical interband (charge transfer) excitations. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Свеpхпpоводимость, в том числе высокотемпеpатуpная Dynamics of electronic excitations in YBCO at low temperatures Article published earlier |
| spellingShingle | Dynamics of electronic excitations in YBCO at low temperatures Fugol, I.Ya. Samovarov, V.N. Libin, M.Yu. Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| title | Dynamics of electronic excitations in YBCO at low temperatures |
| title_full | Dynamics of electronic excitations in YBCO at low temperatures |
| title_fullStr | Dynamics of electronic excitations in YBCO at low temperatures |
| title_full_unstemmed | Dynamics of electronic excitations in YBCO at low temperatures |
| title_short | Dynamics of electronic excitations in YBCO at low temperatures |
| title_sort | dynamics of electronic excitations in ybco at low temperatures |
| topic | Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| topic_facet | Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/137768 |
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