What lies beneath the dome?

Broun, D. M.

doi:10.1038/nphys909

Cited by 115 publications

(131 citation statements)

References 15 publications

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“…The last diagram of figure 18 has a structure that is very reminiscent of the phase diagram of high-T c cuprates, although here we are at zero charge density. In particular the intermediate dome-like structure with chiral symmetry breaking corresponds to the superconducting dome [78] in the cuprate diagram.…”

Section: Jhep01(2013)093mentioning

confidence: 99%

On finite-temperature holographic QCD in the Veneziano limit

Alho

Järvinen

Kajantie

et al. 2013

J. High Energ. Phys.

197

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Holographic models in the T = 0 universality class of QCD in the limit of large number N c of colors and N f massless fermion flavors, but constant ratio x f = N f /N c , are analyzed at finite temperature. The models contain a 5-dimensional metric and two scalars, a dilaton sourcing TrF 2 and a tachyon dual toqq. The phase structure on the T, x f plane is computed and various 1st order, 2nd order transitions and crossovers with their chiral symmetry properties are identified. For each x f , the temperature dependence of p/T 4 and the condensate qq is computed. In the simplest case, we find that for x f up to the critical x c ∼ 4 there is a 1st order transition on which chiral symmetry is broken and the energy density jumps. In the conformal window x c < x f < 11/2, there is only a continuous crossover between two conformal phases. When approaching x c from below, x f → x c , temperature scales approach zero as specified by Miransky scaling.

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Section: Jhep01(2013)093mentioning

confidence: 99%

On finite-temperature holographic QCD in the Veneziano limit

Alho

Järvinen

Kajantie

et al. 2013

J. High Energ. Phys.

197

View full text Add to dashboard Cite

show abstract

“…Interestingly, the location of the steep mass enhancement observed in underdoped YBa 2 Cu 3 O 6+x coincides with a local maximum in superconducting temperature, perhaps mirroring the putative QCP at optimal doping. Experimental evidence has been lacking thus far for a divergent susceptibility characteristic of a proposed QCP under the superconducting dome [88][89][90][91][92][93][94], in part due to the robust superconductivity that obscures any such signatures [95]. While an array of thermodynamic signatures from experiments such as heat capacity, muon spin resonance, neutron scattering and others show a discontinuity above the superconducting dome [96][97][98][99], only a few hints of such a second-order phase transition under the dome have been indicated by the polar Kerr effect in YBa 2 Cu 3 O 6+x in the vicinity of optimal doping [100].…”

Section: Implications Of Steep Effective Mass Enhancement and Possiblmentioning

confidence: 99%

Quantum oscillations in the high- T _c cuprates

Sebastian

Harrison

Lonzarich

2011

Phil. Trans. R. Soc. A.

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We review recent progress in the study of quantum oscillations as a tool for uniquely probing low-energy electronic excitations in high-T c cuprate superconductors. Quantum oscillations in the underdoped cuprates reveal that a close correspondence with Landau Fermi-liquid behaviour persists in the accessed regions of the phase diagram, where small pockets are observed. Quantum oscillation results are viewed in the context of momentum-resolved probes such as photoemission, and evidence examined from complementary experiments for potential explanations for the transformation from a large Fermi surface into small sections. Indications from quantum oscillation measurements of a low-energy Fermi surface instability at low dopings under the superconducting dome at the metal-insulator transition are reviewed, and potential implications for enhanced superconducting temperatures are discussed.

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“…Most experimental studies so far have been carried out either at high temperature, above the onset of superconductivity at T c , where signatures are typically broad, or at low temperature, inside the superconducting phase, where it is difficult to separate the pseudogap from the superconducting gap. Experiments of a third kind are called for: in the T = 0 limit, without superconductivity [1]. This can be achieved by applying large magnetic fields to suppress superconductivity.…”

Section: Introductionmentioning

confidence: 99%