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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2019-10-5-530-535</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-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="en"><subject>PHYSICS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКА</subject></subj-group></article-categories><title-group><article-title>The heat capacity of a semiconductor quantum dot in magnetic fields</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Shaer</surname><given-names>Ayham</given-names></name></name-alternatives><bio xml:lang="en"><p>Nablus, West Bank</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Elsaid</surname><given-names>Mohammad K.</given-names></name></name-alternatives><bio xml:lang="en"><p>Nablus, West Bank</p></bio><email xlink:type="simple">mkelsaid@najah.edu</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Hjaz</surname><given-names>Eshtiaq</given-names></name></name-alternatives><bio xml:lang="en"><p>Nablus, West Bank</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Physics Department, Faculty of Science, An-Najah National University</institution><country>Palestinian Territory, Occupied</country></aff><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>23</day><month>08</month><year>2025</year></pub-date><volume>10</volume><issue>5</issue><fpage>530</fpage><lpage>535</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Shaer A., Elsaid M.K., Hjaz E., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Shaer A., Elsaid M.K., Hjaz E.</copyright-holder><copyright-holder xml:lang="en">Shaer A., Elsaid M.K., Hjaz E.</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://nanojournal.ifmo.ru/jour/article/view/585">https://nanojournal.ifmo.ru/jour/article/view/585</self-uri><abstract><p>The heat capacity of two interacting electrons confined in a quantum dot presented in a magnetic field has been calculated by solving the Hamiltonian using the exact diagonalization method. The statistical average energies for confined and interacting electrons have been computed for various values of magnetic fields, confining frequency and temperature. We had investigated the dependence of the heat capacity on quantum dot Hamiltonian’s parameters and temperature. The singlettriplet transitions in the ground state of the quantum dot spectra and the corresponding jumps in the heat capacity curves had been shown. The comparisons show that our results are in very good agreement with theoretical reported works.</p></abstract><kwd-group xml:lang="en"><kwd>quantum dot</kwd><kwd>magnetic field</kwd><kwd>exact diagonalization</kwd><kwd>heat capacity</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">Ashoori R.C., Stormer H.L., Weiner J.S., Pfeiffer L.N., Baldwin K.W., West K.W. N-electron ground state energies of a quantum dot in magnetic field. 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