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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">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestich-87</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>НЕОРГАНИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INORGANIC CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Электропроводность и термо-ЭДС кобальтитов-галлатов LaCo1-xGaxO3</article-title><trans-title-group xml:lang="en"><trans-title>Electrical conductivityand thermo-EMF of cobaltite gallates LaCo1-xGaxO3</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>Лубинский</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lubinski</surname><given-names>N. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шевченко</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shauchenka</surname><given-names>S. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Башкиров</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bashkirau</surname><given-names>L. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петров</surname><given-names>Г. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrov</surname><given-names>G. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слонская</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Slonskaya</surname><given-names>S. Ku</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Командно-инженерный институт Министерства по чрезвычайным ситуациям Республики Беларусь</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-2"><institution>Белорусский государственный технологический университет</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-3"><institution>Белорусский государственный аграрный технический университет</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>08</day><month>06</month><year>2016</year></pub-date><volume>0</volume><issue>1</issue><fpage>12</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лубинский Н.Н., Шевченко С.В., Башкиров Л.А., Петров Г.С., Слонская С.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Лубинский Н.Н., Шевченко С.В., Башкиров Л.А., Петров Г.С., Слонская С.В.</copyright-holder><copyright-holder xml:lang="en">Lubinski N.N., Shauchenka S.V., Bashkirau L.A., Petrov G.S., Slonskaya S.K.</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://vestichem.belnauka.by/jour/article/view/87">https://vestichem.belnauka.by/jour/article/view/87</self-uri><abstract><p>Установлено, что в системе LaCo1-xGaxO3 увеличение степени замещения х ионов Co3+ в LaCoO3  ионами Ga3+ от 0 до 0,95 приводит к постепенному уменьшению удельной электропроводности (σ). При различных температурах для LaCo1-xGaxO3 по производнымd In σ/d(T-1) рассчитана энергия активации электропроводности (ЕА). Для кобальтитов-галлатов LaCo1-xGaxO3 с 0 ≤ х ≤ 0,5 температурные зависимости ЕА имеют максимум, которому отвечает температура (TEA,max) начала протекания фазового перехода полупроводник-металл. Показано, что коэффициент термо-ЭДС (S) для LaCo1-xGaxO3 при 0 ≤ х ≤ 0,3 при комнатной температуре имеет отрицательное значение. При увеличении температуры S возрастает, проходит через нуль при 435-530 K, достигает максимального значения при 500-650 K и затем уменьшается. Установлено, что для LaCo1-xGaxO3 с 0 ≤ х ≤ 0,5 температуры максимальных значений S и ЕА одинаковы.</p></abstract><trans-abstract xml:lang="en"><p>It has been found that in LaCo1-xGaxO3 system increase of the substitution degree х from 0 to 0,95 leads to the gradual electrical conductivity (σ) decrease. Within 300-1050 K temperature range for samples LaCo1-xGaxO3 with х ≤ 0,5 there are three linear parts on the curve lnσ - Т-1, where electrical conductivity activation energies have been calculated for the low, intermediate and high temperature ranges. Electrical conductivity activation energy ( ЕА) for samples at different temperatures has been also estimated using derivativesd In σ/d(T-1). The EA temperature dependence for LaCo1-xGaxO3 at 0 ≤ х ≤ 0,5 passes through a maximum that indicates the temperature for beginning of semiconductor - metal phase transition (TEA,max). It has been shown that the thermo-EMF coefficient (S) for LaCo1-xGaxO3 (0,1 ≤ х ≤ 0,3) at room temperature is negative, increasing with temperature rising, going through zero at 435-530 K, reaching the maximum at 500-650 K and then dropping down. It has been established that the temperatures corresponding to the maximum S and ЕА values are identical.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bhide V. G., Rajoria D. S., Rao Rama // Phys. Rev. 1972. Vol. 6, N 3. P. 1021-1032.</mixed-citation><mixed-citation xml:lang="en">Bhide V. G., Rajoria D. S., Rao Rama // Phys. Rev. 1972. Vol. 6, N 3. P. 1021-1032.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Radaelli P. G., Cheong S.-W. // Phys. Rev. B. 2002. Vol. 66, N 6. P. 094408-1-094408-9.</mixed-citation><mixed-citation xml:lang="en">Radaelli P. G., Cheong S.-W. // Phys. Rev. B. 2002. Vol. 66, N 6. P. 094408-1-094408-9.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Zobel C. et al. // Phys. Rev. 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