Spin-fluctuations in the quarter-filled Hubbard ring : significances to LiV$_2$O$_4$

Details Spin-fluctuations in the quarter-filled Hubbard ring : significances to LiV$_2$O$_4$ Spin-fluctuations in the quarter-filled Hubbard ring : significances to LiV$_2$O$_4$

2002-11-13

arxiv.org/abs/cond-mat/0211261v1

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures

Scientific paper

10.1103/PhysRevB.67.153108

Using the quantum Monte Carlo method, we investigate the spin dynamics of itinerant electrons in the one-dimensional Hubbard system. Based on the model calculation, we have studied the spin-fluctuations in the quarter-filled metallic Hubbard ring, which is aimed at the vanadium ring or chain defined along corner-sharing tetrahedra of LiV$_2$O$_4$, and found the dramatic changes of magnetic responses and spin-fluctuation characteristics with the temperature. Such results can explain the central findings in the recent neutron scattering experiment for LiV$_2$O$_4$.

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