Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly

We have measured the electrical resistivity ρ{variant}(T) of the chlorinated La2-xSrxCuO4-δ high-Tc superconductor, in a wide range of temperatures (40 ≤ T ≤ 800 K). The systematic effects in ρ{variant}(T) of Cl and Sr contents allowed us, within the Drude and VRH models, to determine the role playe...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Acha, Carlos Enrique, Bekeris, Victoria Isabel, Urba, Laura Gabriela, Levy, Pablo Eduardo, de la Cruz, Fernando Pablo
Publicado: 1994
Materias:
Ceramic materials
Charge carriers
Chlorination
Composition effects
Copper oxides
Crystal lattices
Doping (additives)
Electric conductivity measurement
Electron transport properties
Lanthanum compounds
Order disorder transitions
Strontium
Drude model
Lanthanum strontium copper oxide
Lattice parameters
VRH model
High temperature superconductors
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v227_n3-4_p237_Acha
http://hdl.handle.net/20.500.12110/paper_09214534_v227_n3-4_p237_Acha
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09214534_v227_n3-4_p237_Acha
record_format dspace
spelling paper:paper_09214534_v227_n3-4_p237_Acha2023-06-08T15:50:41Z Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly Acha, Carlos Enrique Bekeris, Victoria Isabel Urba, Laura Gabriela Levy, Pablo Eduardo de la Cruz, Fernando Pablo Ceramic materials Charge carriers Chlorination Composition effects Copper oxides Crystal lattices Doping (additives) Electric conductivity measurement Electron transport properties Lanthanum compounds Order disorder transitions Strontium Drude model Lanthanum strontium copper oxide Lattice parameters VRH model High temperature superconductors We have measured the electrical resistivity ρ{variant}(T) of the chlorinated La2-xSrxCuO4-δ high-Tc superconductor, in a wide range of temperatures (40 ≤ T ≤ 800 K). The systematic effects in ρ{variant}(T) of Cl and Sr contents allowed us, within the Drude and VRH models, to determine the role played by Cl in electrical transport properties: carrier concentration decreases linearly with increasing Cl concentration, and Cl also modifies the electron localized low temperature conducting regime, increasing disorder for low Sr concentration (x = 0.065) while ordering the system for high Sr concentrations (0.08 ≤ x ≤ 0.2). Changes in lattice parameters indicate different structural site occupancies for Cl, depending on Sr doping: for low Sr concentrations an expansion in the c-crystallographic axis with increasing Cl content is observed, while a contraction results for higher Sr contents. © 1994. Fil:Acha, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bekeris, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Urba, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Levy, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:de la Cruz, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1994 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v227_n3-4_p237_Acha http://hdl.handle.net/20.500.12110/paper_09214534_v227_n3-4_p237_Acha
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Ceramic materials
Charge carriers
Chlorination
Composition effects
Copper oxides
Crystal lattices
Doping (additives)
Electric conductivity measurement
Electron transport properties
Lanthanum compounds
Order disorder transitions
Strontium
Drude model
Lanthanum strontium copper oxide
Lattice parameters
VRH model
High temperature superconductors
spellingShingle Ceramic materials
Charge carriers
Chlorination
Composition effects
Copper oxides
Crystal lattices
Doping (additives)
Electric conductivity measurement
Electron transport properties
Lanthanum compounds
Order disorder transitions
Strontium
Drude model
Lanthanum strontium copper oxide
Lattice parameters
VRH model
High temperature superconductors
Acha, Carlos Enrique
Bekeris, Victoria Isabel
Urba, Laura Gabriela
Levy, Pablo Eduardo
de la Cruz, Fernando Pablo
Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
topic_facet Ceramic materials
Charge carriers
Chlorination
Composition effects
Copper oxides
Crystal lattices
Doping (additives)
Electric conductivity measurement
Electron transport properties
Lanthanum compounds
Order disorder transitions
Strontium
Drude model
Lanthanum strontium copper oxide
Lattice parameters
VRH model
High temperature superconductors
description We have measured the electrical resistivity ρ{variant}(T) of the chlorinated La2-xSrxCuO4-δ high-Tc superconductor, in a wide range of temperatures (40 ≤ T ≤ 800 K). The systematic effects in ρ{variant}(T) of Cl and Sr contents allowed us, within the Drude and VRH models, to determine the role played by Cl in electrical transport properties: carrier concentration decreases linearly with increasing Cl concentration, and Cl also modifies the electron localized low temperature conducting regime, increasing disorder for low Sr concentration (x = 0.065) while ordering the system for high Sr concentrations (0.08 ≤ x ≤ 0.2). Changes in lattice parameters indicate different structural site occupancies for Cl, depending on Sr doping: for low Sr concentrations an expansion in the c-crystallographic axis with increasing Cl content is observed, while a contraction results for higher Sr contents. © 1994.
author Acha, Carlos Enrique
Bekeris, Victoria Isabel
Urba, Laura Gabriela
Levy, Pablo Eduardo
de la Cruz, Fernando Pablo
author_facet Acha, Carlos Enrique
Bekeris, Victoria Isabel
Urba, Laura Gabriela
Levy, Pablo Eduardo
de la Cruz, Fernando Pablo
author_sort Acha, Carlos Enrique
title Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
title_short Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
title_full Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
title_fullStr Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
title_full_unstemmed Chlorination effects in electrical transport properties of ceramic La2-xSrxCuO4-δ-yCly
title_sort chlorination effects in electrical transport properties of ceramic la2-xsrxcuo4-δ-ycly
publishDate 1994
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214534_v227_n3-4_p237_Acha
http://hdl.handle.net/20.500.12110/paper_09214534_v227_n3-4_p237_Acha
work_keys_str_mv AT achacarlosenrique chlorinationeffectsinelectricaltransportpropertiesofceramicla2xsrxcuo4dycly
AT bekerisvictoriaisabel chlorinationeffectsinelectricaltransportpropertiesofceramicla2xsrxcuo4dycly
AT urbalauragabriela chlorinationeffectsinelectricaltransportpropertiesofceramicla2xsrxcuo4dycly
AT levypabloeduardo chlorinationeffectsinelectricaltransportpropertiesofceramicla2xsrxcuo4dycly
AT delacruzfernandopablo chlorinationeffectsinelectricaltransportpropertiesofceramicla2xsrxcuo4dycly
_version_ 1768542847054643200

Ejemplares similares