Spin-orbit fluctuations in frustrated heavy-fermion metal LiV${}_2$O${}_4$

Abstract

Spin fluctuations were studied over a wide momentum ($\hslash Q$) 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 highly itinerant magnetic form factor, and antiferromagnetic short-range spatial correlations, indicating that heavy-fermion formation is attributable to spin-orbit fluctuations with orbital hybridization.

5 pages, 3 figures

References in corpus (5)

• Doped Mott insulator as the origin of heavy Fermion behavior in LiV2O4
• Electron Correlation Driven Heavy-Fermion Formation in LiV2O4
• Effective Hamiltonian of Three-orbital Hubbard Model on Pyrochlore Lattice: Application to LiV_2O_4
• Dynamic spin susceptibility of paramagnetic spinel LiV2O4
• Self-consistent renormalization theory of spin fluctuations in paramagnetic spinel LiV2O4

Cited by in corpus (6)

• Magnetic molecular orbitals in MnSi
• Metallic Spin Liquid-like Behavior of LiV${}_2$O${}_4$
• LiV2O4: Hund-Assisted Orbital-Selective Mottness
• Strong ferromagnetic fluctuations in a doped checkerboard lattice
• On the complexity of spinels: Magnetic, electronic, and polar ground states
• Dynamic Spin-Lattice Coupling and Statistical Interpretation for the Molecular-Like Excitations in Frustrated Pyrochlores