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Relevance of Cooperative Lattice Effects and Correlated Disorder in Phase-Separation Theories for CMR Manganites
Jan Burgy, Adriana Moreo, Elbio Dagotto
Previous theoretical investigations of colossal magnetoresistance (CMR) materials explain this effect using a ``clustered'' state with preformed ferromagnetic islands that rapidly…
Unexpected Conductance Dip in the Kondo Regime of Linear Arrays of Quantum Dots
C. A. Büsser, Adriana Moreo, Elbio Dagotto
Using exact-diagonalization of small clusters and Dyson equation embedding techniques, the conductance of linear arrays of quantum dots is investigated. The Hubbard interaction…
Clustered States as a New Paradigm of Condensed Matter Physics
G. Alvarez, E. Dagotto
We argue that several materials of much current interest in condensed matter physics share common phenomenological aspects that only very recent investigations are unveiling. The l…
Theoretical Study of Half-Doped Models for Manganites: Fragility of the CE Phase with Disorder, Two Types of Colossal Magnetoresistances, and Charge-Ordered States for Electron-Doped Materials
H. Aliaga, D. Magnoux, A. Moreo +3
A comprehensive analysis of half-doped manganites is presented using Monte Carlo simulations applied to the double-exchange model with cooperative Jahn-Teller lattice distortions i…
Open Questions in CMR Manganites, Relevance of Clustered States, and Analogies with other Compounds
Elbio Dagotto
This is an informal paper that contains a list of ``things we know'' and ``things we do not know'' in manganites. It is adapted from the conclusions chapter of a recent book by the…