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Technol."],"published-print":{"date-parts":[[2024,7,1]]},"abstract":"<jats:p>The variation of the thermodynamic critical fields (Hc) with temperature has been obtained from the equilibrium magnetization of Fe<jats:sub>x<\/jats:sub>Se<jats:sub>0.5<\/jats:sub>Te<jats:sub>0.5<\/jats:sub> superconducting single-crystal with (0.95\u00a0\u2264 \u00d7 \u2264\u00a01.1). Based on the BCS theory, we used the Hc values to obtain the variations in the energy gap \u0394(T), the cooper pair coupling, the energy gap ratio 2\u0394(0)\/k<jats:sub>B<\/jats:sub>T<jats:sub>c<\/jats:sub>, and the specific heat jump <jats:inline-formula>\n                     <jats:tex-math>\n\n<\/jats:tex-math>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:msub>\n                           <mml:mrow>\n                              <mml:mi mathvariant=\"normal\">\u0394<\/mml:mi>\n                              <mml:mi mathvariant=\"normal\">C<\/mml:mi>\n                           <\/mml:mrow>\n                           <mml:mrow>\n                              <mml:mi mathvariant=\"normal\">BCS<\/mml:mi>\n                           <\/mml:mrow>\n                        <\/mml:msub>\n                        <mml:mo>\/<\/mml:mo>\n                        <mml:msub>\n                           <mml:mrow>\n                              <mml:mi mathvariant=\"normal\">T<\/mml:mi>\n                           <\/mml:mrow>\n                           <mml:mrow>\n                              <mml:mi mathvariant=\"normal\">c<\/mml:mi>\n                           <\/mml:mrow>\n                        <\/mml:msub>\n                     <\/mml:math>\n                  \n                  <\/jats:inline-formula> with varying Fe content. We found that the Cooper pairs coupling strength decreases with increasing Fe content within the range (\u223c3.1 to 2.6) for 1.0\u00a0\u2264 \u00d7 \u2264\u00a01.1, which is consistent with the BCS-weak coupling limit for all samples. Moreover, the value of the energy gap is nearly constant at about 3.5 meV for all samples, while the Hc(0)\/Tc ratio reaches a maximum near x \u223c\u00a01.05. The obtained values of the energy gap, the coupling strength, and the specific heat ratio are consistent with recently published results using various experimental techniques.<\/jats:p>","DOI":"10.1149\/2162-8777\/ad6102","type":"journal-article","created":{"date-parts":[[2024,7,9]],"date-time":"2024-07-09T22:42:28Z","timestamp":1720564948000},"page":"073012","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["On the Thermodynamic Properties of FexSe<sub>0.5<\/sub>Te<sub>0.5<\/sub> Superconducting Single Crystals: An Experimental Study"],"prefix":"10.1149","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4738-4107","authenticated-orcid":true,"given":"R. M.","family":"Hamad","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6685-3995","authenticated-orcid":true,"given":"M. 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Published on behalf of ECS by IOP Publishing Limited. All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2023-11-16","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2024-07-19","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}