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Type: Artigo
Title: Non-Fermi-liquid behavior in metallic quasicrystals with local magnetic moments
Author: Andrade, E. C.
Jagannathan, A.
Miranda, E.
Vojta, M.
Dobrosavljevic, V.
Abstract: Motivated by the intrinsic non-Fermi-liquid behavior observed in the heavy-fermion quasicrystal Au51Al34Yb15, we study the low-temperature behavior of dilute magnetic impurities placed in metallic quasicrystals. We find that a large fraction of the magnetic moments are not quenched down to very low temperatures T, leading to a power-law distribution of Kondo temperatures P(T-K) similar to T-K(alpha-1), with a nonuniversal exponent alpha, in a remarkable similarity to the Kondo-disorder scenario found in disordered heavy-fermion metals. For alpha < 1, the resulting singular P(T-K) induces non-Fermi-liquid behavior with diverging thermodynamic responses as T -> 0.
Subject: Função de onda
Transformações de fase (Física estatística)
Níveis de energia (Mecânica quântica)
Country: Estados Unidos
Editor: American Physical Society
Citation: Non-fermi-liquid Behavior In Metallic Quasicrystals With Local Magnetic Moments. Amer Physical Soc, v. 115, p. Jul-2015.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.115.036403
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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