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Competition between ferromagnetic and charge-orbital ordered phases in PrCaMnO for =1/4, 3/8, and 1/2
Takashi Hotta, Elbio Dagotto
Spin, charge, and orbital structures in models for doped manganites are studied by a combination of analytic mean-field and numerical relaxation techniques. At realistic values for…
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…
Topological Scenario for Stripe Formation in Manganese Oxides
Takashi Hotta, Yasutami Takada, Hiroyasu Koizumi +1
The spin-charge-orbital complex structures of manganites are studied using topological concepts. The key quantity is the "winding number" w associated with the Berry-phase connecti…
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…
Experiments on Ladders Reveal a Complex Interplay between a Spin-Gapped Normal State and Superconductivity
Elbio Dagotto
In recent years, the study of ladder materials has developed into a well-established area of research within the general context of Strongly Correlated Electrons. This effort has b…
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…