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Orbital order in ZnVO
Tulika Maitra, Roser Valenti
In view of recent controversy regarding the orbital order in the frustrated spinel ZnV2O4, we analyze the orbital and magnetic groundstate of this system within an ab initio densit…
Charge order and phase segregation in overdoped bilayer manganites
T. Maitra, A. Taraphder, H. Beck
There have been recent reports of charge ordering around in the bilayer manganites. At , there appears to be a coexistence region of layered A-type antiferromagnetc…
Volume contraction at the Jahn-Teller transition of LaMnO
T. Maitra, P. Thalmeier, T. Chatterji
We have studied the volume collapse of LaMnO at the Jahn- Teller (JT) transition temperature T=750 K which has recently been found in high temperature powder x- ray and…
Magnetic and orbital order in overdoped bilayer manganites
Tulika Maitra, A. Taraphder
The magnetic and orbital orders for the bilayer manganites in the doping region have been investigated from a model that incorporates the two orbitals at each…
Magnetic, orbital and charge ordering in the electron-doped manganites
Tulika Maitra, A. Taraphder
The three dimensional perovskite manganites in the range of hole-doping are studied in detail using a double exchange model with degenerate orbitals including intra…