31 citations · 94 across the 8 of their papers we have counts for
13 papers
A theoretical study of the cluster glass-Kondo-magnetic disordered alloys
F. M. Zimmer, S. G. Magalhães, B. Coqblin
The physics of disordered alloys, such as typically the well known case of CeNi1-xCux alloys, showing an interplay among the Kondo effect, the spin glass state and a magnetic order…
Stability conditions for fermionic Ising spin-glass models in the presence of a transverse field
S. G. Magalhaes, F. M. Zimmer, C. V. Morais
The stability of spin-glass (SG) phase is analyzed in detail for a fermionic Ising SG (FISG) model in the presence of a magnetic transverse field . The fermionic path integral f…
Role of the transverse field in inverse freezing in the fermionic Ising spin-glass model
S. G. Magalhaes, C. V. Morais, F. M. Zimmer
We investigate the inverse freezing in the fermionic Ising spin-glass (FISG) model in a transverse field . The grand canonical potential is calculated in the static approximatio…
Doniach diagram for ordered, disordered and underscreened Kondo lattices
B. Coqblin, J. R. Iglesias, N. B. Perkins +2
The Doniach's diagram has been originally proposed to describe the competition between the local Kondo effect and the intersite RKKY interactions in cerium compounds. Here we discu…
One-step replica symmetry breaking solution for a highly asymmetric two-sublattice fermionic Ising spin glass model in a transverse field
F. M. Zimmer, S. G. Magalhaes
The one-step replica symmetry breaking (RSB) is used to study a two-sublattice fermionic infinite-range Ising spin glass (SG) model in a transverse field . The problem is formul…
Antiferromagnetic Ising spin glass competing with BCS pairing interaction in a transverse field
S. G. Magalhaes, F. M. Zimmer, C. J. Kipper +1
The competition among spin glass (SG), antiferromagnetism (AF) and local pairing superconductivity (PAIR) is studied in a two-sublattice fermionic Ising spin glass model with a loc…