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Storey, J. G.; Tallon, J. L.; Williams, G. V. M.; Loram, J. W.

doi:10.1103/physrevb.76.060502

Cited by 48 publications

(60 citation statements)

References 21 publications

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“…[90,197] The anti-correlation of the VHS peak position with superconductivity could arise because the VHS can drive a competing ferromagnetic instability. [198,199] …”

Section: Doping-dependent Dispersion In Bi2212mentioning

confidence: 99%

“…41(a,c). Indeed, Storey, et al [198] find that in Bi-2212 the VHS induces strong pair-breaking, suppressing superconductivity, so that the optimum T c falls at a doping below the VHS. This is consistent with the evidence for strong FM pair-breaking adduced by Kopp et al [402], and with the STM results of Fig.…”

Section: Pure D-wave Solutionmentioning

confidence: 99%

“…[413] may also have overlooked the role of ferromagnetic pairbreaking fluctuations, which are widely expected to be limiting T c on the overdoped side. [198,402] We should keep in mind that a key impediment to obtaining high T c s is the emergence of competing phases [416].…”

Section: Low Vs High Energy Pairing Gluementioning

confidence: 99%

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Intermediate coupling model of the cuprates

Das

Markiewicz

Bansil

2014

Advances in Physics

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We review the intermediate coupling model for treating electronic correlations in the cuprates. Spectral signatures of the intermediate coupling scenario are identified and used to adduce that the cuprates fall in the intermediate rather than the weak or the strong coupling limits. A robust, 'beyond LDA' framework for obtaining wide-ranging properties of the cuprates via a GW-approximation based self-consistent self-energy correction for incorporating correlation effects is delineated. In this way, doping and temperature dependent spectra, from the undoped insulator to the overdoped metal, in the normal as well as the superconducting state, with features of both weak and strong coupling can be modeled in a material-specific manner with very few parameters. Efficacy of the model is shown by considering available spectroscopic data on electron and hole doped cuprates from angle-resolved photoemission (ARPES), scanning tunneling microscopy/spectroscopy (STM/STS), neutron scattering, inelastic light scattering, optical and other experiments. Generalizations to treat systems with multiple correlated bands such as the heavy-fermions, the ruthenates, and the actinides are discussed.

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“…[90,197] The anti-correlation of the VHS peak position with superconductivity could arise because the VHS can drive a competing ferromagnetic instability. [198,199] …”

Section: Doping-dependent Dispersion In Bi2212mentioning

confidence: 99%

Section: Pure D-wave Solutionmentioning

confidence: 99%

See 1 more Smart Citation

Intermediate coupling model of the cuprates

Das

Markiewicz

Bansil

2014

Advances in Physics

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“…71 The difference would seem to be that the latter study explored only the role of fluctuations near the resonance, whereas our full susceptibility calculation found an important role of ferromagnetic pairbreaking fluctuations, widely expected to be limiting T c on the overdoped side. 72,73 As Cohen and Anderson 74 have noted, a key impediment to finding high T c superconductors is the emergence of competing phases.…”

Section: Discussionmentioning

confidence: 99%

Self-energy and fluctuation spectra in cuprates: Comparing optical and photoemission results

2012

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We compare efforts to extract self energies and fluctuation spectra of the cuprates using optical and photoemission techniques. The fluctuations have contributions from both the coherent and incoherent parts of the band, which are spread over the full bare bandwidth of > 2 eV. Many experimental studies concentrate on the coherent part of the band and hence miss higher energy fluctuations. Our study establishes the universal presence of high energy bosonic fluctuations across various spectroscopies as a key ingredient in the high temperature superconducting cuprates.

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“…The existence of small Fermi surface is our prediction, which should be verified by direct measurements. The thermodynamic data for Bi-2212 [17] have shown two special hole concentrations under the superconducting dome: at x 1 ¼ 0.16 there is a crossover of the pseudogap parameter T* and T c , and sharp increase in the electronic entry S and the jump of the electronic heat capacity Dg. At x 2 ¼ 0.19 the T*-0 and kinks in S(x) and Dg(x) dependencies were found.…”

Section: Article In Pressmentioning

confidence: 96%