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Explanation of Giant Cluster Coexistence in Doped Manganites and Other Compounds
Adriana Moreo, Matthias Mayr, Adrian Feiguin +2
Computational studies show the generation of large coexisting metallic and insulating clusters with equal electronic density in models for manganites. The clusters are induced by d…
Ferromagnetic, A-type, and Charge-Ordered CE-type States in Doped Manganites using Jahn-Teller Phonons
Seiji Yunoki, Takashi Hotta, Elbio Dagotto
The two-orbital model for manganites with both non-cooperative and cooperative Jahn-Teller phonons is studied at hole density x=0.5 using Monte Carlo techniques. The phase diagram…
Magnetic Domains and Stripes in the Spin-Fermion Model for Cuprates
Charles Buhler, Seiji Yunoki, Adriana Moreo
Monte Carlo simulations applied to the Spin-Fermion model for cuprates show the existence of antiferromagnetic spin domains and charge stripes upon doping. The stripes are partiall…
Cooperative Jahn-Teller Effect on the Magnetic Structure of Manganese Oxides
Takashi Hotta, Seiji Yunoki, Elbio Dagotto
The magnetic structure of LaMnO is investigated on three-dimensional clusters of MnO octahedra by using a combination of relaxation and Monte Carlo techniques. It is found…
A-type Antiferromagnetic and C-type Orbital-Ordered State in LaMnO Using Cooperative Jahn-Teller Phonons
Takashi Hotta, Seiji Yunoki, Matthias Mayr +1
The effect of Jahn-Teller phonons on the magnetic and orbital structure of LaMnO is investigated using a combination of relaxation and Monte Carlo techniques on three-dimension…
Pseudogap Formation in Models for Manganites
Adriana Moreo, Seiji Yunoki, Elbio Dagotto
The density-of-states (DOS) and one-particle spectral function of the one- and two-orbital models for manganites, the latter with Jahn-Teller phonons, are evalu…
The Phase Separation Scenario for Manganese Oxides
Adriana Moreo, Seiji Yunoki, Elbio Dagotto
Recent computational studies of models for manganese oxides have revealed a rich phase diagram, not anticipated in early calculations in this context performed in the 1950's and 60…