Physics – Condensed Matter – Materials Science
Scientific paper
2004-06-24
Physics
Condensed Matter
Materials Science
6 pages
Scientific paper
10.1103/PhysRevB.70.224438
We analyzed the possible magnetic and orbital orderings of double perovskites, using a simple extension of the double exchange model well suited for these compounds. Orbital ordering is favored by the on site repulsion at the Fe ions. We obtain a rich phase diagram, including ferri- and antiferromagnetic phases, which can, in turn, be metallic or insulating, depending on the existence of orbital order.
Guinea Francisco
Taraphder A.
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