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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">npe</journal-id><journal-title-group><journal-title xml:lang="ru">Ядерная физика и инжиниринг</journal-title><trans-title-group xml:lang="en"><trans-title>Nuclear Physics and Engineering</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-5629</issn><issn pub-type="epub">2079-5637</issn><publisher><publisher-name>МИФИ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.56304/S207956292506017X</article-id><article-id custom-type="edn" pub-id-type="custom">ZCQUJB</article-id><article-id custom-type="elpub" pub-id-type="custom">npe-585</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Взаимодействие плазмы, пучков частиц и излучения с веществом</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Interaction of Plasma, Particle Beams and Radiation with Matter</subject></subj-group></article-categories><title-group><article-title>ИССЛЕДОВАНИЕ НЕРАВНОВЕСНЫХ ФОТОВОЗБУЖДЕННЫХ СОСТОЯНИЙ В ВТСП КОМПОЗИТАХ С ИСПОЛЬЗОВАНИЕМ СВЕРХБЫСТРОЙ ЛАЗЕРНОЙ СПЕКТРОСКОПИИ</article-title><trans-title-group xml:lang="en"><trans-title>STUDY OF NONEQUILIBRIUM PHOTOEXCITED STATES IN HTSC COMPOSITES USING ULTRAFAST LASER SPECTROSCOPY</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартиросян</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Martirosyan</surname><given-names>I. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Покровский</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pokrovskii</surname><given-names>S. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>A. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Юсупов</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Yusupov</surname><given-names>R. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный Исследовательский Ядерный Университет “МИФИ”</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский (Приволжский) Федеральный Университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2025</year></pub-date><volume>16</volume><issue>6</issue><fpage>922</fpage><lpage>928</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мартиросян И.В., Покровский С.В., Петров А.В., Юсупов Р.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Мартиросян И.В., Покровский С.В., Петров А.В., Юсупов Р.В.</copyright-holder><copyright-holder xml:lang="en">Martirosyan I.V., Pokrovskii S.V., Petrov A.V., Yusupov R.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://npe.elpub.ru/jour/article/view/585">https://npe.elpub.ru/jour/article/view/585</self-uri><abstract><p>В статье представлены результаты исследований сверхбыстрой фотоиндуцированной динамики коэффициента отражения сверхпроводящих композитов на основе слоистых купратов семейства REBCO (RE = Y) на подложке сплава Hastelloy C-276 в диапазоне температур 5–200 К. Показано, что сверхбыстрые отклики коэффициента отражения на возбуждение фемтосекундными световыми импульсами содержат компоненты, обусловленные нормальной и сверхпроводящей подсистемами. Вклад от нормальной компоненты проявляет более быструю релаксацию, ~0.2 пс, его амплитуда пропорциональна плотности энергии накачки в широком диапазоне ее величин. Для отклика сверхпроводящей компоненты, наблюдающейся ниже Tc = 92 K, наблюдается более длинная релаксация, ~2.5 пс, а вариация амплитуды с плотностью энергии накачки проявляет излом при ~14 мкДж/см2. Амплитуда отклика сверхпроводящей компоненты изменяется с температурой в соответствии с предсказаниями феноменологической модели Ротварфа и Тейлора. Тонкопленочные композиты на базе YBa2Cu3O7–x по данным сверхбыстрой лазерной спектроскопии имеют свойства, очень близкие к свойствам этих соединений в форме монокристаллов.</p></abstract><trans-abstract xml:lang="en"><p>The superfast photoinduced dynamics of the reflection coefficient of superconducting composites based on layered REBCO (RE = Y) cuprates on a Hastelloy C-276 substrate has been studied in the temperature range of 5–200 K. It has been shown the ultrafast responses of the reflection coefficient to the excitation by femtosecond light pulses contain components caused by the normal and superconducting subsystems. The contribution from the normal component has a shorter relaxation time of ~0.2 ps, and its amplitude is proportional to the pump energy density in a wide range. The response of the superconducting component observed below Tc = 92 K has a longer relaxation time of ~2.5 ps, and the dependence of the amplitude on the pump energy density has a bend at ~14 μJ/cm2. The temperature dependence of the response amplitude of the superconducting component corresponds to predictions of the phenomenological Rothwarf–Taylor model. According to the ultrafast laser spectroscopy data, the properties of thin-film YBa2Cu3O7–x-based composites are very close to the properties of single crystals of these compounds</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ВТСП композиты</kwd><kwd>спектроскопия накачки-зондирования</kwd><kwd>pump-probe спектроскопия</kwd><kwd>отражательная способность</kwd><kwd>неравновесные состояния</kwd></kwd-group><kwd-group xml:lang="en"><kwd>HTSC composites</kwd><kwd>pump–probe spectroscopy</kwd><kwd>reflectivity</kwd><kwd>nonequilibrium states</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность Министерству науки и высшего образования РФ (Соглашение № 075-15-2021-1352) за финансовую поддержку.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Testardi L.R. // Phys. Rev. B. 1971. V. 4 (7). P. 2189–2196.</mixed-citation><mixed-citation xml:lang="en">Testardi L.R. // Phys. Rev. B. 1971. V. 4 (7). P. 2189–2196.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Han S.G. et al. // Phys. Rev. Lett. 1990. V. 65 (21). P. 2708–2711.</mixed-citation><mixed-citation xml:lang="en">Han S.G. et al. // Phys. Rev. Lett. 1990. V. 65 (21). P. 2708–2711.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Chwalek J.M. et al. // Appl. Phys. Lett. 1991. V. 58 (9). P. 980–982.</mixed-citation><mixed-citation xml:lang="en">Chwalek J.M. et al. // Appl. Phys. Lett. 1991. V. 58 (9). P. 980–982.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Albrecht W., Kruse T., Kurz H. // Phys. Rev. Lett. 1992. V. 69 (9). P. 1451–1454.</mixed-citation><mixed-citation xml:lang="en">Albrecht W., Kruse T., Kurz H. // Phys. Rev. Lett. 1992. V. 69 (9). P. 1451–1454.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Dvorsek D. et al. // Phys. Rev. B. 2002. V. 66 (2). P. 020510.</mixed-citation><mixed-citation xml:lang="en">Dvorsek D. et al. // Phys. Rev. B. 2002. V. 66 (2). P. 020510.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kusar P. et al. // Phys. Rev. Lett. 2008. V. 101 (22). P. 227001.</mixed-citation><mixed-citation xml:lang="en">Kusar P. et al. // Phys. Rev. Lett. 2008. V. 101 (22). P. 227001.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Giannetti C. et al. //. 2008.</mixed-citation><mixed-citation xml:lang="en">Giannetti C. et al. //. 2008.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Fugol I. et al. // Solid State Commun. 1991. V. 80 (3). P. 201–206.</mixed-citation><mixed-citation xml:lang="en">Fugol I. et al. // Solid State Commun. 1991. V. 80 (3). P. 201–206.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Dewing H.L., Salje E.K.H. // Supercon. Sci. Technol. 1992. V. 5 (2). P. 50.</mixed-citation><mixed-citation xml:lang="en">Dewing H.L., Salje E.K.H. // Supercon. Sci. Technol. 1992. V. 5 (2). P. 50.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Rüscher C.H., Götte M. // Solid State Commun. 1993. V. 85 (5). P. 393–396.</mixed-citation><mixed-citation xml:lang="en">Rüscher C.H., Götte M. // Solid State Commun. 1993. V. 85 (5). P. 393–396.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Rothwarf A., Taylor B.N. // Phys. Rev. Lett. 1967. V. 19 (1). P. 27–30.</mixed-citation><mixed-citation xml:lang="en">Rothwarf A., Taylor B.N. // Phys. Rev. Lett. 1967. V. 19 (1). P. 27–30.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Kabanov V.V., Demsar J., Mihailovic D. // Phys. Rev. Lett. 2005. V. 95 (14). P. 147002.</mixed-citation><mixed-citation xml:lang="en">Kabanov V.V., Demsar J., Mihailovic D. // Phys. Rev. Lett. 2005. V. 95 (14). P. 147002.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Demsar J. et al. // Phys. Rev. Lett. 2003. V. 91 (26). P. 267002.</mixed-citation><mixed-citation xml:lang="en">Demsar J. et al. // Phys. Rev. Lett. 2003. V. 91 (26). P. 267002.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Geibel C. et al. // J. Phys. F: Met. Phys. 1985. V. 15 (2). P. 405.</mixed-citation><mixed-citation xml:lang="en">Geibel C. et al. // J. Phys. F: Met. Phys. 1985. V. 15 (2). P. 405.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Bardeen J., Cooper L.N., Schrieffer J.R. // Phys. Rev. 1957. V. 108 (5). P. 1175–1204.</mixed-citation><mixed-citation xml:lang="en">Bardeen J., Cooper L.N., Schrieffer J.R. // Phys. Rev. 1957. V. 108 (5). P. 1175–1204.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Springer D. et al. // Phys. Rev. B. 2016. V. 93 (6). P. 064510.</mixed-citation><mixed-citation xml:lang="en">Springer D. et al. // Phys. Rev. B. 2016. V. 93 (6). P. 064510.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Stojchevska L. et al. // Phys. Rev. B. 2011. V. 84 (18). P. 180507.</mixed-citation><mixed-citation xml:lang="en">Stojchevska L. et al. // Phys. Rev. B. 2011. V. 84 (18). P. 180507.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kabanov V.V., Demsar J., Podobnik B., Mihailovic D. // Phys. Rev. B. 1999. V. 59 (2). P. 1497.</mixed-citation><mixed-citation xml:lang="en">Kabanov V.V., Demsar J., Podobnik B., Mihailovic D. // Phys. Rev. B. 1999. V. 59 (2). P. 1497.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Stevens C.J. et al. // Phys. Rev. Lett. 1997. V. 78 (11). P. 2212.</mixed-citation><mixed-citation xml:lang="en">Stevens C.J. et al. // Phys. Rev. Lett. 1997. V. 78 (11). P. 2212.</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Rothwarf A., Taylor B.N. // Phys. Rev. Lett. 1967. V. 19 (1). P. 27.</mixed-citation><mixed-citation xml:lang="en">Rothwarf A., Taylor B.N. // Phys. Rev. Lett. 1967. V. 19 (1). P. 27.</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Mattis D.C., Bardeen J. // Phys. Rev. B. 1958. V. 111 (2). P. 412–417.</mixed-citation><mixed-citation xml:lang="en">Mattis D.C., Bardeen J. // Phys. Rev. B. 1958. V. 111 (2). P. 412–417.</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Mertelj T. et al. // Phys. Rev. Lett. 2009. V. 102 (11). P. 117002.</mixed-citation><mixed-citation xml:lang="en">Mertelj T. et al. // Phys. Rev. Lett. 2009. V. 102 (11). P. 117002.</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Loram W., Mirza K.A. // Phys. C (Amsterdam, Neth.). 1988. V. 153–155. P. 1020–1021.</mixed-citation><mixed-citation xml:lang="en">Loram W., Mirza K.A. // Phys. C (Amsterdam, Neth.). 1988. V. 153–155. P. 1020–1021.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Katsumi K. et al. // Phys. Rev. B. 2023. V. 107 (21). P. 214506.</mixed-citation><mixed-citation xml:lang="en">Katsumi K. et al. // Phys. Rev. B. 2023. V. 107 (21). P. 214506.</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Luo C.-W. et al. // J. Low Temp. Phys. 2003. V. 131. P. 767–774.</mixed-citation><mixed-citation xml:lang="en">Luo C.-W. et al. // J. Low Temp. Phys. 2003. V. 131. P. 767–774.</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Wald H., Seidel P., Tonouchi M. // Phys. C (Amsterdam, Neth.). 2002. V. 367 (1–4). P. 308–316.</mixed-citation><mixed-citation xml:lang="en">Wald H., Seidel P., Tonouchi M. // Phys. C (Amsterdam, Neth.). 2002. V. 367 (1–4). P. 308–316.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
