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Updated: Apr 19, 2026

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Spin-orbit fluctuations in frustrated heavy-fermion metal LiV(2)O(4)
K Tomiyasu1, K Iwasa1, H Ueda2
1Department of Physics, Tohoku University, Aoba, Sendai 980-8578, Japan.
Abstract:
Spin fluctuations were studied over a wide momentum (ℏQ) and energy (E) space in the frustrated d-electron heavy-fermion metal LiV_{2}O_{4} by time-of-flight inelastic neutron scattering. We observed the overall Q-E evolutions near the characteristic Q=0.6 Å^{-1} peak and found another weak broad magnetic peak around 2.4 Å^{-1}. The data are described by a simple response function, a partially delocalized magnetic form factor, and antiferromagnetic short-range spatial correlations, indicating that heavy-fermion formation is attributable to spin-orbit fluctuations with orbital hybridization.
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