Ground state, electronic structure and magnetism of LaMnO3

Details Ground state, electronic structure and magnetism of LaMnO3 Ground state, electronic structure and magnetism of LaMnO3

2004-03-29

arxiv.org/abs/cond-mat/0403714v1

Acta Physica 9-10 (2007) 39

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 2 figures, in RevTex4

Scientific paper

10.1016/j.jmmm.2003.11.176

We have calculated the discrete low-energy electronic structure in LaMnO3 originating from the atomic-like states of the strongly correlated 3d4 electronic system occurring in the Mn3+ ion. We take into account very strong intra-atomic correlations, crystal field interactions and the intra-atomic spin-orbit coupling. We calculated magnetic and paramagnetic state of LaMnO3 within the consistent description given by Quantum Atomistic Solid State Theory (QUASST). Our studies indicate that the intra-atomic spin-orbit coupling and the orbital magnetism are indispensable for the physically adequate description of electronic and magnetic properties of LaMnO3. Keywords: 3d oxides, crystal field, spin-orbit coupling, LaMnO3 PACS: 71.70Ej, 75.10Dg

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