What is the fate of the heavy electron at a quantum critical point?

Abstract

A growing body of evidence suggests that the quantum critical behavior at the onset of magnetism in heavy fermion systems can not be understood in terms of a simple quantum spin density wave. This talk will discuss the consequences of this conclusion, touching on its possible implications in the realm of two dimensional systems and outlining current theoretical and experimental efforts to characterize the nature of the critical point in heavy fermion materials.

To appear in SCES 2001

References in corpus (1)

• Singular Fermi Liquids

Cited by in corpus (24)

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• Magnetic structure of CeRhIn_5 as a function of pressure and temperature
• Anomalous Behavior of Thermodynamic Properties of Strongly Correlated Fermi Systems
• Transport anomalies in a simplified model for a heavy electron quantum critical point
• Quantum criticality in the cubic heavy-fermion system CeIn_{3-x}Sn_x
• Evolution of magnetism in Yb(Rh_(1-x)Co_x)2Si2
• Quantum phase transitions of magnetic rotons
• Quantum Criticality in an Organic Magnet
• Anomalous scaling behavior of the dynamical spin susceptibility of Ce${}_{0.925}$La${}_{0.075}$Ru${}_2$Si${}_2$
• Magnetic quantum phase transition in an anisotropic Kondo lattice
• Controlled bond expansion for DMRG ground state search at single-site costs
• Low temperature magnetic phase diagram of the cubic non-Fermi liquid system CeIn_(3-x)Sn_x
• Muon spin rotation and neutron scattering study of the non-centrosymmetric tetragonal compound CeAuAl3
• Local moment physics in heavy electron systems
• Two Scenarios of the Quantum Critical Point
• Anomalous itinerant magnetism in single crystal Sr4Ru3O10: A thermodynamic and transport investigation
• Nature of the quantum critical point as disclosed by extraordinary behavior of magnetotransport and the Lorentz number in the heavy-fermion metal YbRh2Si2
• Diagrammatic perturbation theory and the pseudogap
• Artificial scaling laws of the dynamical magnetic susceptibility in heavy-fermion systems
• Flattening of Single-Particle Spectra in Strongly Correlated Electron Systems and the Violation of the Wiedemann-Franz Law
• Transport properties of strongly correlated Fermi systems
• Phase transition and fractionalization in superconducting Kondo lattice model