Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mtext>La</mml:mtext></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>Sr</mml:mtext></mml:mrow><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mrow><mml:mtext>CuO</mml:mtext></mml:mrow><mml:mn>4</mml:mn></mml:msub></mml:mrow></

Chang, J.; Shi, M.; Pailhés, S.; Må̊nsson, Martin; Claesson, Thomas; Tjernberg, Oscar; Bendounan, A.; Sassa, Yasmine; Patthey, L.; Momono, N.; Oda, Masahiro; Ido, M.; Guerrero, Sebastian; Mudry, Christopher; Mesot, J.

doi:10.1103/physrevb.78.205103

Cited by 59 publications

(61 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In LSCO, SDW order is observed at low T up to a critical doping p SDW 0.13, in zero magnetic field [47]. Application of a field moves p SDW up, to ∼ 0.15 in H = 15 T [47].…”

Section: Scenario Of An Antiferromagnetic Qcpmentioning

confidence: 99%

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

et al. 2017

View full text Add to dashboard Cite

“…In LSCO, SDW order is observed at low T up to a critical doping p SDW 0.13, in zero magnetic field [47]. Application of a field moves p SDW up, to ∼ 0.15 in H = 15 T [47].…”

Section: Scenario Of An Antiferromagnetic Qcpmentioning

confidence: 99%

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

et al. 2017

View full text Add to dashboard Cite

“…The sample was cleaved at T ¼ 15 K by employing a cleaving tool 25 operated in situ in the sample space kept under ultra high vacuum (10 À 11 mbar). The photoemitted electrons were analysed by a SCIENTA 2002 electron analyser configured to have a 0.15°angular resolution as in Chang et al 21 Different detector channel efficiencies were normalized by measuring a spectrum on poly-crystalline copper in thermal and electrical contact with the sample. The Cu-spectra were also used to extract (i) the chemical potential m and (ii) the overall energy resolution DEE24 meV for the experimental setup.…”

Section: Methodsmentioning

confidence: 99%

“…Often matrix elements vary only weakly as a function of (k,o) in which case the ARPES intensity becomes a direct measure of the occupied part of the spectral function, Iðk; oÞ $ Aðk; oÞ ¼ ð À 1=pÞImð1=ðo À AEðk; oÞ À e k Þ, where e k is the bare-band dispersion. The self-energy S, carrying information about all correlation effects, can be derived experimentally from ImS ¼ v k G k [20][21][22][23] , where v k ¼ @e k =@k is the bare-band velocity and G k is the linewidth of I vs k.…”

mentioning

confidence: 99%

Anisotropic breakdown of Fermi liquid quasiparticle excitations in overdoped La2−xSrxCuO4

et al. 2013

Self Cite

View full text Add to dashboard Cite

High-temperature superconductivity emerges from an un-conventional metallic state. This has stimulated strong efforts to understand exactly how Fermi liquids breakdown and evolve into an un-conventional metal. A fundamental question is how Fermi liquid quasiparticle excitations break down in momentum space. Here we show, using angle-resolved photoemission spectroscopy, that the Fermi liquid quasiparticle excitations of the overdoped superconducting cuprate La 1.77 Sr 0.23 CuO 4 is highly anisotropic in momentum space. The quasiparticle scattering and residue behave differently along the Fermi surface and hence the Kadowaki-Wood's relation is not obeyed. This kind of Fermi liquid breakdown may apply to a wide range of strongly correlated metal systems where spin fluctuations are present.

show abstract

“…9 , reveals that in 1D the good quantum numbers are not the integer numbers N s1 j = j − N as1 /2 = 0, ±1, ±2, ... and N c j = j − N a /2 = 0, ±1, ±2, ... of Eqs. (30) and (31), respectively, but rather the corresponding shifted numbers…”

Section: The Extended Jordan-wigner Transformationmentioning

confidence: 99%

“…The schemes introduced in Refs. 28,29 involve modified versions of the square-lattice quantum liquid investigated in this paper and contribute to the further understanding of the unusual properties of the holedoped cuprate superconductors [30][31][32][33] .…”

Section: Introductionmentioning

confidence: 99%

The square-lattice quantum liquid of charge c fermions and spin-neutral two-spinon s1 fermions

Carmelo

2010

Nuclear Physics B

View full text Add to dashboard Cite

The momentum bands, energy dispersions, and velocities of the charge c fermions and spin-neutral two-spinon s1 fermions of a square-lattice quantum liquid referring to the Hubbard model on such a lattice of edge length L in the one-and two-electron subspace are studied. The model involves the effective nearest-neighbor integral t and on-site repulsion U and can be experimentally realized in systems of correlated ultra-cold fermionic atoms on an optical lattice and thus our results are of interest for such systems. Our investigations profit from a general rotated-electron description, which is consistent with the model global SO(3)×SO(3)×U (1) symmetry. For the model in the oneand two-electron subspace the discrete momentum values of the c and s1 fermions are good quantum numbers so that in contrast to the original strongly-correlated electronic problem their interactions are residual. The use of our description renders an involved many-electron problem into a quantum liquid with some similarities with a Fermi liquid. For the Hubbard model on a square lattice in the one-and two-electron subspace a composite s1 fermion consists of a spin-singlet spinon pair plus an infinitely thin flux tube attached to it. In the U/4t → ∞ limit of infinite on-site interaction the c fermions become non-interacting spinless fermions and the s1 fermion occupancy configurations that generate the spin degrees of freedom of spin-density m = 0 ground states become within a suitable mean-field approximation for the fictitious magnetic field Bs1 ex 3 brought about by the correlations of the original N electron problem those of a full lowest Landau level with N/2 degenerate one-s1 fermion states of the two-dimensional quantum Hall effect. In turn, for U/4t finite the degeneracy of the N/2 one-s1-fermion states is removed by the emergence of a finite-energy-bandwidth s1 fermion dispersion yet the number of s1 band discrete momentum values remains being given by Bs1 L 2 /Φ0 and the s1 effective lattice spacing by as1 = ls1/ √ 2π where ls1 is the fictitious-magnetic-field length and in our units the fictitious-magnetic-field flux quantum reads Φ0 = 1. Elsewhere it is found that the use of the square-lattice quantum liquid of charge c fermions and spin-neutral two-spinon s1 fermions investigated here contributes to the further understanding of the role of electronic correlations in the unusual properties of the hole-doped cuprate superconductors. This indicates that quantum-Hall-type behavior with or without magnetic field may be ubiquitous in nature.

show abstract

Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperatureLa2−xSrxCuO4

Cited by 59 publications

References 38 publications

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

Fermi-surface transformation across the pseudogap critical point of the cuprate superconductor La1.6−xNd0.4SrxCuO4

Anisotropic breakdown of Fermi liquid quasiparticle excitations in overdoped La2−xSrxCuO4

The square-lattice quantum liquid of charge c fermions and spin-neutral two-spinon s1 fermions

Contact Info

Product

Resources

About