Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2009-06-15
Physics
Condensed Matter
Strongly Correlated Electrons
4 two-column pages, 7 figures, RevTeX, to appear in Phys Rev B (RC)
Scientific paper
We consider local magnetic moments coupled to conduction electrons with on-site attraction, in order to discuss the interplay between pairing and magnetic order. We probe the ground state properties of this model on a one-dimensional lattice through pair binding energies and several correlation functions, calculated by means of density-matrix renormalization group. A phase diagram is obtained (for fixed electron density 1/3), from which we infer that coexistence between magnetic order and superconductivity is robust, at the expense of a continuous distortion of the magnetic arrangement of the local moments, as evidenced by a strong dependence of the characteristic wave vector k* with the coupling constants. This allows us to understand some trends of the coexistence, such as the influence of the rare earth on k*, as observed experimentally in the borocarbides.
Bertussi P. R.
dos Santos Raimundo R.
Malvezzi Andre Luiz
Paiva Thereza
No associations
LandOfFree
Kondo--attractive-Hubbard model for the ordering of local magnetic moments in superconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Kondo--attractive-Hubbard model for the ordering of local magnetic moments in superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kondo--attractive-Hubbard model for the ordering of local magnetic moments in superconductors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-316748