| Full text | |
| Author(s): |
Andrade, Eric C.
[1]
;
Jagannathan, Anuradha
[2]
;
Miranda, Eduardo
[3]
;
Vojta, Matthias
[4]
;
Dobrosavljevic, Vladimir
[5, 6]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil
[2] Univ Paris 11, CNRS, Phys Solides Lab, UMR 8502, F-91405 Orsay - France
[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[4] Tech Univ Dresden, Inst Theoret Phys, D-01062 Dresden - Germany
[5] Florida State Univ, Dept Phys, Tallahassee, FL 32306 - USA
[6] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 - USA
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | Physical Review Letters; v. 115, n. 3 JUL 14 2015. |
| Web of Science Citations: | 17 |
| 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. (AU) | |
| FAPESP's process: | 13/00681-8 - Disordered magnets: ground state, excitations, and thermodynamics |
| Grantee: | Eric de Castro e Andrade |
| Support type: | Research Grants - Young Investigators Grants |