title: Non-Fermi-Liquid Behavior in Metallic Quasicrystals with Local Magnetic Moments.
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))∼T(K)(α-1), with a nonuniversal exponent α, in a remarkable similarity to the Kondo-disorder scenario found in disordered heavy-fermion metals. For α<1, the resulting singular P(T(K)) induces non-Fermi-liquid behavior with diverging thermodynamic responses as T→0.
authors.affiliation: Instituto de Física Teórica, Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz, 271-Bloco II, 01140-070 São Paulo, SP, Brazil.
authors.forename: Eric C
authors.initials: EC
authors.lastname: Andrade
authors.affiliation: Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, 91405 Orsay, France.
authors.forename: Anuradha
authors.initials: A
authors.lastname: Jagannathan
authors.affiliation: Instituto de Física Gleb Wataghin, Unicamp, Rua Sérgio Buarque de Holanda, 777, CEP 13083-859 Campinas, SP, Brazil.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Miranda
authors.affiliation: Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Vojta
authors.affiliation: Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Dobrosavljević