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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Datum:1999
Hauptverfasser: Fugol, I.Ya., Samovarov, V.N., Libin, M.Yu.
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Sprache:English
Veröffentlicht: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1999
Schriftenreihe:Физика низких температур
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Online Zugang:http://dspace.nbuv.gov.ua/handle/123456789/137768
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Zitieren: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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spelling irk-123456789-1377682018-06-18T03:06:20Z Dynamics of electronic excitations in YBCO at low temperatures Fugol, I.Ya. Samovarov, V.N. Libin, M.Yu. Свеpхпpоводимость, в том числе высокотемпеpатуpная 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. 1999 Article 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 http://dspace.nbuv.gov.ua/handle/123456789/137768 en Физика низких температур 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 Свеpхпpоводимость, в том числе высокотемпеpатуpная
Свеpхпpоводимость, в том числе высокотемпеpатуpная
spellingShingle Свеpхпpоводимость, в том числе высокотемпеpатуpная
Свеpхпpоводимость, в том числе высокотемпеpатуpная
Fugol, I.Ya.
Samovarov, V.N.
Libin, M.Yu.
Dynamics of electronic excitations in YBCO at low temperatures
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.
format Article
author Fugol, I.Ya.
Samovarov, V.N.
Libin, M.Yu.
author_facet Fugol, I.Ya.
Samovarov, V.N.
Libin, M.Yu.
author_sort Fugol, I.Ya.
title Dynamics of electronic excitations in YBCO at low temperatures
title_short 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_sort dynamics of electronic excitations in ybco at low temperatures
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
publishDate 1999
topic_facet Свеpхпpоводимость, в том числе высокотемпеpатуpная
url http://dspace.nbuv.gov.ua/handle/123456789/137768
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.
series Физика низких температур
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AT samovarovvn dynamicsofelectronicexcitationsinybcoatlowtemperatures
AT libinmyu dynamicsofelectronicexcitationsinybcoatlowtemperatures
first_indexed 2025-07-10T02:40:12Z
last_indexed 2025-07-10T02:40:12Z
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