CaCrO3: an anomalous antiferromagnetic metallic oxide - Condensed Matter > Strongly Correlated ElectronsReportar como inadecuado




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Abstract: Combining infrared reflectivity, transport, susceptibility and severaldiffraction techniques, we find compelling evidence that CaCrO3 is a rare caseof a metallic and antiferromagnetic transition-metal oxide with athree-dimensional electronic structure. LSDA calculations correctly describethe metallic behavior as well as the anisotropic magnetic ordering pattern of Ctype: The high Cr valence state induces via sizeable pd hybridizationremarkably strong next-nearest neighbor interactions stabilizing this ordering.The subtle balance of magnetic interactions gives rise to magneto-elasticcoupling, explaining pronounced structural anomalies observed at the magneticordering transition.



Autor: A. C. Komarek, S.V. Streltsov, M. Isobe, T. Moeller, M. Hoelzel, A. Senyshyn, D. Trots, M.T. Fernandez-Diaz, T. Hansen, H. Gotou,

Fuente: https://arxiv.org/







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