{"id":{"repo_id":"aachen","oai_identifier":"oai:publications.rwth-aachen.de:62137"},"canonical_url":"https://search.dev.ndltd.org/etd/aachen/oai:publications.rwth-aachen.de:62137","repository":{"repo_id":"aachen","name":"RWTH Aachen University","base_url":"https://publications.rwth-aachen.de/oai2d"},"display":{"title":"Transport properties of Eu doped La 2 - x Sr x CuO 4","abstract":"This work comprises the experimental investigation of several transport properties of the stripe ordering cuprate La1.8-xEu0.20SrxCuO4 (0.08 ( x (0.2), in particular electrical resistivity, Hall-effect, thermoelectric power and Nernst-effect. It is found that the stripe ordering has a strong impact on these quantities. Superconductivity is suppressed and the resistivity exhibits an upturn towards low temperatures. The Hall-coefficient, the thermopower and the Nernst-signal are strongly reduced. The data confirm that the Sr-concentration x = 1/8 is particular since this upturn in the resistivity is smallest and a sign change of the thermopower occurs at this doping level. Moreover, the suppression of the Hall-signal is only evident for x ( 1/8. In addition, the temperature-dependencies of the diagonal and off-diagonal components of the electrical conductivity do not exhibit a pronounced difference, which is contradicting previous results where a strong difference was found and 1D-conductionwithin the stripes was concluded. Finally, the suppression of the Nernst signal is only evident with respect to the superconducting phase of pure La2-xSrxCuO4. At higher temperatures the Nernst-signal is very similar for both materials and is unusually large for a normal state metal.","abstract_html":"This work comprises the experimental investigation of several transport properties of the stripe ordering cuprate La1.8-xEu0.20SrxCuO4 (0.08 ( x (0.2), in particular electrical resistivity, Hall-effect, thermoelectric power and Nernst-effect. It is found that the stripe ordering has a strong impact on these quantities. Superconductivity is suppressed and the resistivity exhibits an upturn towards low temperatures. The Hall-coefficient, the thermopower and the Nernst-signal are strongly reduced. The data confirm that the Sr-concentration x = 1/8 is particular since this upturn in the resistivity is smallest and a sign change of the thermopower occurs at this doping level. Moreover, the suppression of the Hall-signal is only evident for x ( 1/8. In addition, the temperature-dependencies of the diagonal and off-diagonal components of the electrical conductivity do not exhibit a pronounced difference, which is contradicting previous results where a strong difference was found and 1D-conductionwithin the stripes was concluded. Finally, the suppression of the Nernst signal is only evident with respect to the superconducting phase of pure La2-xSrxCuO4. At higher temperatures the Nernst-signal is very similar for both materials and is unusually large for a normal state metal.","abstract_has_math":false,"creators":["Ahmed, Emad Makboul Abdelhady"],"institution":"Publikationsserver der RWTH Aachen University","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Büchner, Bernd"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004","date_published":"2004","updated_at":"2026-07-30T19:43:19Z","subjects":["info:eu-repo/classification/ddc/530","Lanthanverbindungen","Strontiumverbindungen","Cuprate","Dotierung","Europium","Ladungstransport","Physik"],"languages":["eng"],"rights":["info:eu-repo/semantics/openAccess"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123730%22"],"render_values":[{"text":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123730%22","href":"https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123730%22","code":true}]}]},"links":{"outbound_url":"https://publications.rwth-aachen.de/record/62137","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Büchner, Bernd"]},{"key":"dc:creator","label":"Author","values":["Ahmed, Emad Makboul Abdelhady"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:coverage","label":"Dc Coverage","values":["DE"]},{"key":"dc:date","label":"Dc Date","values":["2004"]},{"key":"dc:publisher","label":"Institution","values":["Publikationsserver der RWTH Aachen University"]},{"key":"dc:relation","label":"Dc Relation","values":["info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:82-opus-8901"]},{"key":"dc:type","label":"Dc Type","values":["info:eu-repo/semantics/doctoralThesis","info:eu-repo/semantics/publishedVersion"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["info:eu-repo/classification/ddc/530","Lanthanverbindungen","Strontiumverbindungen","Cuprate","Dotierung","Europium","Ladungstransport","Physik"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["info:eu-repo/semantics/openAccess"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://publications.rwth-aachen.de/record/62137","https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123730%22"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This work comprises the experimental investigation of several transport properties of the stripe ordering cuprate La1.8-xEu0.20SrxCuO4 (0.08 ( x (0.2), in particular electrical resistivity, Hall-effect, thermoelectric power and Nernst-effect. It is found that the stripe ordering has a strong impact on these quantities. Superconductivity is suppressed and the resistivity exhibits an upturn towards low temperatures. The Hall-coefficient, the thermopower and the Nernst-signal are strongly reduced. The data confirm that the Sr-concentration x = 1/8 is particular since this upturn in the resistivity is smallest and a sign change of the thermopower occurs at this doping level. Moreover, the suppression of the Hall-signal is only evident for x ( 1/8. In addition, the temperature-dependencies of the diagonal and off-diagonal components of the electrical conductivity do not exhibit a pronounced difference, which is contradicting previous results where a strong difference was found and 1D-conductionwithin the stripes was concluded. Finally, the suppression of the Nernst signal is only evident with respect to the superconducting phase of pure La2-xSrxCuO4. At higher temperatures the Nernst-signal is very similar for both materials and is unusually large for a normal state metal."]},{"key":"dc:source","label":"Dc Source","values":["Aachen : Publikationsserver der RWTH Aachen University 87 S. : graph. Darst. (2004). = Aachen, Techn. Hochsch., Diss., 2004"]},{"key":"dc:title","label":"Title","values":["Transport properties of Eu doped La 2 - x Sr x CuO 4"]}]}],"canonical_facts":{"dc:contributor":["Büchner, Bernd"],"dc:coverage":["DE"],"dc:creator":["Ahmed, Emad Makboul Abdelhady"],"dc:date":["2004"],"dc:description":["This work comprises the experimental investigation of several transport properties of the stripe ordering cuprate La1.8-xEu0.20SrxCuO4 (0.08 ( x (0.2), in particular electrical resistivity, Hall-effect, thermoelectric power and Nernst-effect. It is found that the stripe ordering has a strong impact on these quantities. Superconductivity is suppressed and the resistivity exhibits an upturn towards low temperatures. The Hall-coefficient, the thermopower and the Nernst-signal are strongly reduced. The data confirm that the Sr-concentration x = 1/8 is particular since this upturn in the resistivity is smallest and a sign change of the thermopower occurs at this doping level. Moreover, the suppression of the Hall-signal is only evident for x ( 1/8. In addition, the temperature-dependencies of the diagonal and off-diagonal components of the electrical conductivity do not exhibit a pronounced difference, which is contradicting previous results where a strong difference was found and 1D-conductionwithin the stripes was concluded. Finally, the suppression of the Nernst signal is only evident with respect to the superconducting phase of pure La2-xSrxCuO4. At higher temperatures the Nernst-signal is very similar for both materials and is unusually large for a normal state metal."],"dc:identifier":["https://publications.rwth-aachen.de/record/62137","https://publications.rwth-aachen.de/search?p=id:%22RWTH-CONV-123730%22"],"dc:language":["eng"],"dc:publisher":["Publikationsserver der RWTH Aachen University"],"dc:relation":["info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:82-opus-8901"],"dc:rights":["info:eu-repo/semantics/openAccess"],"dc:source":["Aachen : Publikationsserver der RWTH Aachen University 87 S. : graph. Darst. (2004). = Aachen, Techn. Hochsch., Diss., 2004"],"dc:subject":["info:eu-repo/classification/ddc/530","Lanthanverbindungen","Strontiumverbindungen","Cuprate","Dotierung","Europium","Ladungstransport","Physik"],"dc:title":["Transport properties of Eu doped La 2 - x Sr x CuO 4"],"dc:type":["info:eu-repo/semantics/doctoralThesis","info:eu-repo/semantics/publishedVersion"]},"updated_at":"2026-07-30T19:43:19Z"}