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Singular Fermi Liquid

Local Moment and Heavy Fermion Physics: Piers Coleman, Rutgers University DMR 0312495. Singular Fermi Liquid. T. QCP. Hertz, 1976. Fermi Liquid. Ordered State.  c. . 0. Confused State of Matter.

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Singular Fermi Liquid

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  1. Local Moment and Heavy Fermion Physics: Piers Coleman, Rutgers University DMR 0312495 Singular Fermi Liquid T QCP Hertz, 1976 Fermi Liquid Ordered State. c  0 Confused State of Matter Quantum Criticality : essential singularity in the phase diagram of real materials.

  2. 1.0 Takagi et al, PRL ‘92 Hidden order? 0.8 0.6 ab (m cm) 0.4 Pseudogap metal T 0.2 T* Marginal Fermi liquid 0.0 0 200 400 600 800 1000 T(K) Fermi liquid AFM x Quantum critical point Do we understand QCPs where the order parameter is uncontroversial?

  3. Field tuned QCP T-Linear T-Linear T2 T2 T2 YbRh2Si2 Dresden team and P. Coleman., Nature, 424, 524 August (2003)

  4. Experiment, with close theoretical collaboration has shown that at a quantum critical point, there is one energy scale (in transport and thermodynamics)…. going to zero at the QCP Dresden team + P. Coleman, Nature, 424, 524 August (2003)

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