Temperature Dependent Scattering Rates at the Fermi Surface of Optimally Doped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>Bi</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Sr</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>CaCu</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml

Valla, T.; Fedorov, A. V.; Johnson, P. D.; Q, Li; Gu, Genda; Koshizuka, N.

doi:10.1103/physrevlett.85.828

Cited by 186 publications

(212 citation statements)

References 19 publications

(21 reference statements)

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“…It follows that the momentum transport scattering rate measured in . Similar results may be found in the work by Valla et al [262]. resistivity or optical conductivity and the energy transport rate measured in thermal conductivity have the same (!…”

Section: Marginal Fermi Liquid Behavior Of the Normal Statesupporting

confidence: 79%

“…The Fermi velocity v(k) is measured through the EDC with the conclusion that it is independent ofk to within the experimental errors. Further data from the same group shows that the temperature dependence is consistent with linearity all around the Fermi surface [262] with a coe cient independent ofk although the error bars are huge near the ( ; 0) direction. Besides the MFL contribution, there is also a temperature independent contribution to the width which is strongly angle-dependent, to which we will soon turn.…”

Section: Marginal Fermi Liquid Behavior Of the Normal Statementioning

confidence: 78%

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Singular or non-Fermi liquids

2002

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Section: Marginal Fermi Liquid Behavior Of the Normal Statesupporting

confidence: 79%

Section: Marginal Fermi Liquid Behavior Of the Normal Statementioning

confidence: 78%

Singular or non-Fermi liquids

2002

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“…2e). In this near-nodal regime, Γ TDoS is essentially isotropic and of the scale of 2-3 meV, which is counter to earlier ARPES observations in which Γ was large (of the order of 20-30 meV) and grew rapidly away from the node 26 .…”

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confidence: 50%

The origin and non-quasiparticle nature of Fermi arcs in Bi2Sr2CaCu2O8+δ

et al. 2012

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A Fermi arc 1,2 is a disconnected segment of a Fermi surface observed in the pseudogap phase 3,4 of cuprate superconductors. This simple description belies the fundamental inconsistency in the physics of Fermi arcs, specifically that such segments violate the topological integrity of the band 5 . Efforts to resolve this contradiction of experiment and theory have focused on connecting the ends of the Fermi arc back on itself to form a pocket, with limited and controversial success 6-9 . Here we show the Fermi arc, although composed of real spectral weight, lacks the quasiparticles to be a true Fermi surface 5 . To reach this conclusion we developed a new photoemission-based technique that directly probes the interplay of pair-forming and pair-breaking processes with unprecedented precision. We find the spectral weight composing the Fermi arc is shifted from the gap edge to the Fermi energy by pair-breaking processes 10 . Although real, this weight does not form a true Fermi surface, because the quasiparticles, although significantly broadened, remain at the gap edge. This non-quasiparticle weight may account for much of the unexplained behaviour of the pseudogap phase of the cuprates.

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“…From the experimental point of view the determination of the scattering rate ͓Im ⌺͑k ជ , ͔͒ presents particular interest and much effort has been devoted in order to obtain it: by ARPES because of the momentum and energy-resolved measurements 8,25,44,45 and recently by electrical transport experiments at microwave frequencies. 46 The extraction of the correlation functions from the experimental data is a complicated task and, although many theoretical approximations exist, the computation of correlation effects is also difficult.…”

Section: ͯͪ ͑21͒mentioning

confidence: 99%

Self-energy corrections to anisotropic Fermi surfaces

et al. 2006

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The electron-electron interactions affect the low-energy excitations of an electronic system and induce deformations of the Fermi surface. These effects are especially important in anisotropic materials with strong correlations, such as copper-oxide superconductors or ruthenates. Here we analyze the deformations produced by electronic correlations in the Fermi surface of anisotropic two-dimensional systems, treating the regular and singular regions of the Fermi surface on the same footing. Simple analytical expressions are obtained for the corrections, based on local features of the Fermi surface. It is shown that, even for weak local interactions, the behavior of the self-energy is nontrivial, showing a momentum dependence and a self-consistent interplay with the Fermi surface topology. Results are compared to experimental observations and to other theoretical results.

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Temperature Dependent Scattering Rates at the Fermi Surface of Optimally DopedBi2Sr2CaCu2

Cited by 186 publications

References 19 publications

Singular or non-Fermi liquids

Singular or non-Fermi liquids

The origin and non-quasiparticle nature of Fermi arcs in Bi2Sr2CaCu2O8+δ

Self-energy corrections to anisotropic Fermi surfaces

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