Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4

In order to study the important of Casimir phonon scattering on the thermal conductivity of La1.8Sr0.2CuO4, we measure the thermal conductivity between 1 and 30 K on samples of different grain sizes. We conclude that it starts to be important in this temperature range for grain sizes d < 10 μ...

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Detalles Bibliográficos
Publicado: 1990
Materias:
Ceramic Materials
Lanthanum Compounds
Oxides
Phonons
Grain Size
Phonon Scattering
High Temperature Superconductors
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v75_n3_p243_Bekeris
http://hdl.handle.net/20.500.12110/paper_00381098_v75_n3_p243_Bekeris
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00381098_v75_n3_p243_Bekeris
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spelling paper:paper_00381098_v75_n3_p243_Bekeris2023-06-08T15:03:02Z Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4 Ceramic Materials Lanthanum Compounds Oxides Phonons Grain Size Phonon Scattering High Temperature Superconductors In order to study the important of Casimir phonon scattering on the thermal conductivity of La1.8Sr0.2CuO4, we measure the thermal conductivity between 1 and 30 K on samples of different grain sizes. We conclude that it starts to be important in this temperature range for grain sizes d < 10 μm. The other phonon scattering mechanisms to understand the thermal conductivity temperature dependence are scattering against stacking faults or twin walls and tunnelling systems analogous to those found in glasses. © 1990. 1990 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v75_n3_p243_Bekeris http://hdl.handle.net/20.500.12110/paper_00381098_v75_n3_p243_Bekeris
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
Lanthanum Compounds
Oxides
Phonons
Grain Size
Phonon Scattering
High Temperature Superconductors
spellingShingle Ceramic Materials
Lanthanum Compounds
Oxides
Phonons
Grain Size
Phonon Scattering
High Temperature Superconductors
Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
topic_facet Ceramic Materials
Lanthanum Compounds
Oxides
Phonons
Grain Size
Phonon Scattering
High Temperature Superconductors
description In order to study the important of Casimir phonon scattering on the thermal conductivity of La1.8Sr0.2CuO4, we measure the thermal conductivity between 1 and 30 K on samples of different grain sizes. We conclude that it starts to be important in this temperature range for grain sizes d < 10 μm. The other phonon scattering mechanisms to understand the thermal conductivity temperature dependence are scattering against stacking faults or twin walls and tunnelling systems analogous to those found in glasses. © 1990.
title Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
title_short Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
title_full Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
title_fullStr Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
title_full_unstemmed Thermal conductivity and grain size of ceramic La1.8Sr0.2CuO4
title_sort thermal conductivity and grain size of ceramic la1.8sr0.2cuo4
publishDate 1990
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00381098_v75_n3_p243_Bekeris
http://hdl.handle.net/20.500.12110/paper_00381098_v75_n3_p243_Bekeris
_version_ 1768546713253969920

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