Do quasicrystals follow Wiedemann-Franz's law?
In this work we present a theoretical study on the thermal and electrical conductivities of quasicrystals. By considering a realistic model for the spectral conductivity we derive closed analytical expressions for the transport coefficients which allow us to study the temperature dependence of the L...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2002 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/60192 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/60192 |
| Access Level: | acceso abierto |
| Palabra clave: | 538.9 Al-Cu-Fe Electronic transport-properties Icosahedral quasi-crystals Density-of-states Thermoelectric-materials Conductivity Clusters Alloys Phases Física de materiales Física del estado sólido 2211 Física del Estado Sólido |
| Sumario: | In this work we present a theoretical study on the thermal and electrical conductivities of quasicrystals. By considering a realistic model for the spectral conductivity we derive closed analytical expressions for the transport coefficients which allow us to study the temperature dependence of the Lorenz ratio L( T) = κ_(e)(T)/ Tσ( T) at different temperature regimes. We conclude that quasicrystals closely follow Wiedemann- Franz's law over a wide temperature range. |
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