Challenging Magnetic Field Dependence of the Residual Resistivity of the Heavy-Fermion Metal CeCoIn5

Abstract

An explanation of paradoxical behavior of the residual resistivity rho_0 of the heavy-fermion metal CeCoIn5 in magnetic fields and under pressure is developed. The source of this behavior is identified as a flattening of the single-particle spectrum, which exerts profound effects on the specific heat, thermal expansion coefficient, and magnetic susceptibility in the normal state, the specific heat jump at the point of superconducting phase transition, and other properties of strongly correlated electron systems in solids. It is shown that application of a magnetic field or pressure to a system possessing a flat band leads to a strong suppression of rho_0. Analysis of its measured thermodynamic and transport properties yields direct evidence for the presence of a flat band in CeCoIn5.

arXiv comment5 pages, 3 figures, references added, minor corrections made

References in corpus (25)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Heavy-fermion superconductivity in CeCoIn5 at 2.3K
• High-temperature surface superconductivity in topological flat-band systems
• Field-Induced Quantum Critical Point in CeCoIn5
• A Non-Fermi Liquid from a Charged Black Hole; A Critical Fermi Ball
• Superconductivity and Quantum Criticality in CeCoIn_5
• Flat bands in topological media
• First order superconducting phase transition in CeCoIn${}_5$
• Visualizing heavy fermions emerging in a quantum critical Kondo lattice
• Isolated Flat Bands and Spin-1 Conical Bands in Two-Dimensional Lattices
• Scaling Behavior of Heavy Fermion Metals
• Topology of the Fermi Surface Beyond the Quantum Critical Point
• Nonvanishing Energy Scales at the Quantum Critical Point of CeCoIn5
• Field-Tuned Quantum Critical Point in CeCoIn${}_5$ Near the Superconducting Upper Critical Field
• Flat band in the core of topological defects: bulk-vortex correspondence in topological superfluids with Fermi points
• Pressure Study of Quantum Criticality in CeCoIn5
• Towards the identification of a quantum critical line in the (p, B) phase diagram of CeCoIn5
• Topological invariants for Standard Model: from semi-metal to topological insulator
• Curie law, entropy excess, and superconductivity in heavy fermion metals and other strongly interacting Fermi liquids
• Dimensional crossover of quantum critical behavior in CeCoIn${}_5$
• Multi-connected Momentum Distribution and Fermion Condensation
• Ground state instability in systems of strongly interacting fermions
• Adaptation of the Landau-Migdal Quasiparticle Pattern to Strongly Correlated Fermi Systems
• Quasiparticles of strongly correlated Fermi liquids at high temperatures and in high magnetic fields
• Damping effects and the metal-insulator transition in the two-dimensional electron gas

Cited by in corpus (20)

• Common quantum phase transition in quasicrystals and heavy-fermion metals
• Quasi-classical physics and T-linear resistivity in both strongly correlated and ordinary metals
• Occurrence of flat bands in strongly correlated Fermi systems and high-$T_c$ superconductivity of electron-doped compounds
• New state of matter: heavy-fermion systems, quantum spin liquids, quasicrystals, cold gases, and high temperature superconductors
• Fermion condensation, $T$-linear resistivity and Planckian limit
• The influence of topological phase transition on the superfluid density of overdoped copper oxides
• Flat bands and the physics of strongly correlated Fermi systems
• Topological basis for understanding the behavior of the heavy-fermion metal $\beta -\mathrm{YbAl}{\mathrm{B}}_4$ under application of magnetic field and pressure
• Topological disorder triggered by interaction-induced flattening of electron spectra in solids
• Nature of the quantum critical point as disclosed by extraordinary behavior of magnetotransport and the Lorentz number in the heavy-fermion metal YbRh2Si2
• Toward a topological scenario for high-temperature superconductivity of copper oxides
• Flat Bands and Enigma of Metamagnetic Quantum Critical Regime in Sr3Ru2O7
• Common behavior of the scaled condensation energy for both high-$T_c$ and conventional superconductors
• Fate of the Wiedemann-Franz law near quantum critical points of electron systems in solids
• Scaling behavior of the thermopower of the archetypical heavy-fermion metal $\mathrm{YbR}{\mathrm{h}}_2\mathrm{S}{\mathrm{i}}_2$
• Transport properties of strongly correlated Fermi systems
• The occurrence of a Mott-like gap in single-particle spectra of electron systems possessing flat bands
• Scaling behavior of superconductors
• Quantum Phase Transition in $\mathrm{CeCoI}{\mathrm{n}}_5$: Experimental Facts and Theory
• A unified quasiparticle approach to the theory of strongly correlated electron liquids