On the heavy-fermion behavior of the pyrochlore transition-metal oxide $Li{V}_2{O}_4$

Abstract

Motivated by the heavy fermion Fermi liquid (HFFL) features observed at low-$T$ in the pyrochlore $Li{V}_2{O}_4$, we consider a material-specific model that includes aspects of the local quantum chemistry, the geometrically frustrated lattice structure, and strong correlations in a {\it single} approach. In particular, we show how geometrical frustration (GF) gives rise to a crossover scale, $T^{\ast }<<J$, the intersite (AF) exchange, below which the metallic system shows HFFL features. Our scenario is a specific realization of the importance of GF effects in driving HFFL behavior in $Li{V}_2{O}_4$, and provides a natural understanding of various puzzling features observed experimentally.

4 pages, 3 figures

References in corpus (4)

• Colossal Magnetoresistant Materials: The Key Role of Phase Separation
• Heavy-fermion and spin-liquid behavior in a Kondo lattice with magnetic frustration
• Spin fluctuations in a magnetically frustrated metal, LiV2O4
• On the origin of heavy quasiparticles in LiV_2O_4

Cited by in corpus (15)

• Electronic Structure Calculations with Dynamical Mean-Field Theory: A Spectral Density Functional Approach
• Doped Mott insulator as the origin of heavy Fermion behavior in LiV2O4
• Low-Temperature and High-Energy-Resolution Laser Photoemission Spectroscopy
• Mott Transition in the Hubbard Model on Checkerboard Lattice
• Effective Hamiltonian of Three-orbital Hubbard Model on Pyrochlore Lattice: Application to LiV_2O_4
• Systematic Analysis of Frustration Effects in Anisotropic Checkerboard Lattice Hubbard Model
• Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in Mn${}_3$P
• Metallic Spin Liquid-like Behavior of LiV${}_2$O${}_4$
• LiV2O4: Hund-Assisted Orbital-Selective Mottness
• Staggered magnetism in LiV${}_2$O${}_4$ at low temperatures probed by the muon Knight shift
• Self-consistent renormalization theory of spin fluctuations in paramagnetic spinel LiV2O4
• Quasi-one-dimensional spin dynamics in LiV2O4: 1D-to-3D crossover as a possible origin of heavy fermion state
• Electronic states and magnetic excitations in LiV2O4: Exact diagonalization study
• Quest for the Origin of Heavy Fermion Behavior in $d$-Electron Systems
• Exploring the Electronic Nature of Spinel Oxides: A Review of Their Electron Interactions and Prospects