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oai:docta.ucm.es:20.500.14352/521022023-08-27T11:10:41Zcom_20.500.14352_14col_20.500.14352_15

Maciá Barber, Enrique Alfonso Rodriguez Olivero, Rogelio 2023-06-20T12:39:37Z 2023-06-20T12:39:37Z 2007-03 1098-0121 10.1103/PhysRevB.75.104210 https://hdl.handle.net/20.500.14352/52102 http://dx.doi.org/10.1103/PhysRevB.75.104210 https://journals.aps.org/ The validity of the Wiedemann-Franz law (WFL) for icosahedral quasicrystals belonging to the families AlCu(Fe,Ru) and AlPd(Mn,Re) is discussed. We exploit some characteristic features in the electronic structure in order to obtain closed analytical expressions for the transport coefficients in terms of the Hurwitz zeta function. Depending on the Fermi-level position, a systematic deviation from the ideal WFL is observed. The role of self-similar features in the electronic structure on the WFL is discussed. The obtained expression for the Lorenz function may be used in order to refine previous experimental results on the charge-carrier contribution to the thermal conductivity in these materials. eng open access Theoretical assessment on the validity of the Wiedemann-Franz law for icosahedral quasicrystals journal article