To the origin of large reduction of the effective moment in Na2V3O7

Details To the origin of large reduction of the effective moment in Na2V3O7 To the origin of large reduction of the effective moment in Na2V3O7

2003-07-11

arxiv.org/abs/cond-mat/0307272v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages in RevTex4, 4 figs

Scientific paper

We have shown that the observed large reduction of the effective moment in Na2V3O7 may be caused by conventional crystal-field interactions and the intra-atomic spin-orbit coupling of the V4+ ion. The fine discrete electronic structure of the 3d1 configuration with the weakly-magnetic Kramers-doublet ground state, caused by the large orbital moment, is the reason for anomalous properties of Na2V3O7. Moreover, according to the Quantum Atomistic Solid-State Theory (QUASST), Na2V3O7 is expected to exhibit pronounced heavy-fermion phenomena at low temperatures. PACS No: 71.70.E; 75.10.D Keywords: crystal-field interactions, spin-orbit coupling, orbital moment. Na2V3O7

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