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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">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-2035</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>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Спектроскопическое исследование смешанного щелочного эффекта в легированных ионами Cr3+ стеклах Li2O-K2O-B2O3</article-title><trans-title-group xml:lang="en"><trans-title>Mixed Alkali Effect in Cr3+-Doped Li2O-K2O-B2O3 Glasses: Spectroscopic Investigations</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>Rao</surname><given-names>G. S.</given-names></name><name name-style="western" xml:lang="en"><surname>Rao</surname><given-names>G. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Виджаявада</p></bio><bio xml:lang="en"><p>Vijayawada</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Babu</surname><given-names>J. K.</given-names></name><name name-style="western" xml:lang="en"><surname>Babu</surname><given-names>J. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бачупалли, Хайдарабад</p></bio><bio xml:lang="en"><p>Hyderabad</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Vagdevi</surname><given-names>K.</given-names></name><name name-style="western" xml:lang="en"><surname>Vagdevi</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хайдарабад</p></bio><bio xml:lang="en"><p>Hyderabad</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Palle</surname><given-names>K.</given-names></name><name name-style="western" xml:lang="en"><surname>Palle</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хайдарабад, Телангана</p></bio><bio xml:lang="en"><p>Hyderabad, Telangana</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Vijay</surname><given-names>R.</given-names></name><name name-style="western" xml:lang="en"><surname>Vijay</surname><given-names>R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Канчикачерла</p></bio><bio xml:lang="en"><p>Kanchikacherla</p></bio><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Vijayalakshmi</surname><given-names>L.</given-names></name><name name-style="western" xml:lang="en"><surname>Vijayalakshmi</surname><given-names>L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кёнсан</p></bio><bio xml:lang="en"><p>Gyeongsan si</p></bio><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Lim</surname><given-names>J.</given-names></name><name name-style="western" xml:lang="en"><surname>Lim</surname><given-names>J.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кёнсан</p></bio><email xlink:type="simple">lvl.phy@gmail.com</email><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ravikumar</surname><given-names>R. V. S. S. N.</given-names></name><name name-style="western" xml:lang="en"><surname>Ravikumar</surname><given-names>R. V. S. S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нагарджунанагар</p></bio><bio xml:lang="en"><p>Nagarjunanagar</p></bio><email xlink:type="simple">rvssn@yahoo.co.in</email><xref ref-type="aff" rid="aff-7"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Технологический институт NRI (автономный), Агирипалли, Элуру (Дермания)</institution></aff><aff xml:lang="en"><institution>Department of Physics, NRI Institute of Technology (Autonomous), Agiripalli, Eluru (Dt)</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Инженерный колледж Гокараджу Лайлавати</institution></aff><aff xml:lang="en"><institution>Department of Physics, Gokaraju Lailavathi Engineering College, Bachupally</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Институт инженерии и технологий имени Гокараджу Рангараджу</institution></aff><aff xml:lang="en"><institution>Department of Physics, Gokaraju Rangaraju Institute of Engineering &amp; Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Инженерный колледж CVR</institution></aff><aff xml:lang="en"><institution>Department of H&amp;S (Chemistry), CVR College of Engineering</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Технологический колледж MIC</institution></aff><aff xml:lang="en"><institution>Basic Engineering Department, DVR &amp; Dr. HS MIC College of Technology</institution></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>Университет Ённам</institution></aff><aff xml:lang="en"><institution>Department of Mechanical Engineering, Yeungnam University</institution></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>Университет Ачарьи Нагарджуны</institution></aff><aff xml:lang="en"><institution>Department of Physics, Acharya Nagarjuna University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>11</month><year>2025</year></pub-date><volume>92</volume><issue>6</issue><fpage>823</fpage><lpage>823</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Rao G.S., Babu J.K., Vagdevi K., Palle K., Vijay R., Vijayalakshmi L., Lim J., Ravikumar R., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Rao G.S., Babu J.K., Vagdevi K., Palle K., Vijay R., Vijayalakshmi L., Lim J., Ravikumar R.</copyright-holder><copyright-holder xml:lang="en">Rao G.S., Babu J.K., Vagdevi K., Palle K., Vijay R., Vijayalakshmi L., Lim J., Ravikumar R.</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://zhps.ejournal.by/jour/article/view/2035">https://zhps.ejournal.by/jour/article/view/2035</self-uri><abstract><p>Литий-калий-боратное (LKB) стекло получено путем варьирования концентрации легирующей примеси Cr3+ методом закалки расплава. На приготовленных образцах проведены исследования поглощения в УФ-видимом диапазоне, электронного парамагнитного резонанса и ИК-Фурье-спектроскопии. Для различных стекол наблюдались нелинейные изменения физических параметров, что указывает на магнитооптическую аномалию. Из данных по оптическому поглощению получены такие параметры, как энергия Урбаха и ширина запрещенной зоны. Данные по оптическому поглощению использованы для оценки кристаллического поля и параметров Рака. Рассчитанные параметры связи указывают на ковалентную природу связи. Спектр ЭПР стекла LKB, легированного Cr3+, демонстрирует значительные сигналы, характерные для ионов Cr3+ с искаженной октаэдрической симметрией. ИК-Фурье-спектр выявляет наличие тригональных BO3 и тетраэдрических BO4 структурных компонентов, присутствующих в стекле.</p></abstract><trans-abstract xml:lang="en"><p>Lithium-potassium-borate (LKB) glass was prepared by varying the concentrations of Cr3+ dopant using the melt-quenching technique. Further, UV-visible absorption, EPR, and FT-IR spectroscopy processes were carried out on the prepared samples. Evaluations were also conducted on a wide range of physical parameters. Nonlinear variations in physical parameters were observed for different glasses, indicating Mixed Alkali Effect (MAE). Various optical parameters, including Urbach energy and optical band gap were derived from the optical absorption data. Data from optical absorption were used to evaluate the crystal field and Racah parameters. The calculated bonding parameters suggest a covalent nature. The EPR spectrum of LKB glass doped with Cr3+ demonstrates significant signals that are characteristic of Cr3+ ions in distorted octahedral symmetry. The FTIR spectrum conveys trigonal BO3 and tetrahedral BO4 structural components that exist in the glass material.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>литий-калий-боратное стекло</kwd><kwd>смешанный щелочной эффект</kwd><kwd>оптическое поглощение</kwd><kwd>симметрия узла</kwd></kwd-group><kwd-group xml:lang="en"><kwd>LKB glasses</kwd><kwd>mixed alkali effect</kwd><kwd>optical absorption</kwd><kwd>site symmetry</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">K. Arun Varshneya, Fundamental of Inorganic Glasses, Academic Press, San Diego (1994).</mixed-citation><mixed-citation xml:lang="en">K. 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