scholarly journals Non-Fermi-liquid scattering against an emergent Bose liquid: Manifestations in the kink and other exotic quasiparticle behavior in the normal-state cuprate superconductors

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Shengtao Jiang ◽  
Long Zou ◽  
Wei Ku
Keyword(s):  
Normal State ◽  
Fermi Liquid ◽  
Cuprate Superconductors ◽  
Bose Liquid

scholarly journals A unified form of low-energy nodal electronic interactions in hole-doped cuprate superconductors

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
T. J. Reber ◽  
X. Zhou ◽  
N. C. Plumb ◽  
S. Parham ◽  
J. A. Waugh ◽  
...  
Keyword(s):  
Power Law ◽  
Normal State ◽  
Fermi Liquid ◽  
Cuprate Superconductors ◽  
Spectral Weight ◽  
Microscopic Mechanism ◽  
Electronic Interactions ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Marginal Fermi Liquid ◽  
Wide Range

AbstractUsing angle resolved photoemission spectroscopy measurements of Bi2Sr2CaCu2O8+δ over a wide range of doping levels, we present a universal form for the non-Fermi liquid electronic interactions in the nodal direction in the exotic normal state phase. It is described by a continuously varying power law exponent versus energy and temperature (hence named a Power Law Liquid or PLL), which with doping varies smoothly from a quadratic Fermi Liquid in the overdoped regime, to a linear Marginal Fermi Liquid at optimal doping, to a non-quasiparticle non-Fermi Liquid in the underdoped regime. The coupling strength is essentially constant across all regimes and is consistent with Planckian dissipation. Using the extracted PLL parameters we reproduce the experimental optics and resistivity over a wide range of doping and normal-state temperature values, including the T* pseudogap temperature scale observed in the resistivity curves. This breaks the direct link to the pseudogapping of antinodal spectral weight observed at similar temperature scales and gives an alternative direction for searches of the microscopic mechanism.

STABLE hc/e VORTICES IN SUPERCONDUCTORS WITH SPIN-CHARGE SEPARATION

1992 ◽  
Vol 06 (05n06) ◽  
pp. 509-526
Author(s):  
Subir Sachdev
Keyword(s):  
Magnetic Field ◽  
Magnetic Flux ◽  
Normal State ◽  
Phenomenological Model ◽  
Charge Separation ◽  
Cuprate Superconductors ◽  
Superconducting Phase ◽  
Low Energy ◽  
Large N ◽  
Normal State Properties

A phenomenological model, F, of the superconducting phase of systems with spin-charge separation and antiferromagnetically induced pairing is studied. Above Hc1, magnetic flux can always pierce the superconductor in vortices with flux hc/2e, but regimes are found in which vortices with flux hc/e are preferred. Little-Park and other experiments, which examine periodicities with a varying magnetic field, always observe a period of hc/2e. The low energy properties of a symplectic large-N expansion of a model of the cuprate superconductors are argued to be well described by F. This analysis and some normal state properties of the cuprates suggest that hc/e vortices should be stable at the lowest dopings away from the insulating state at which superconductivity first occurs.

Assessment of Fermi-liquid description for the normal state of high-Tcsuperconductors

1989 ◽  
Vol 39 (16) ◽  
pp. 11633-11647 ◽  
Author(s):  
Ju H. Kim ◽  
K. Levin ◽  
A. Auerbach
Keyword(s):  
Normal State ◽  
Fermi Liquid

Normal state understanding within a Fermi liquid approach

2004 ◽  
Vol 241 (6) ◽  
pp. 1229-1235
Author(s):  
I. Sfar ◽  
S. Charfi-Kaddour ◽  
M. Héritier ◽  
R. Bennaceur
Keyword(s):  
Normal State ◽  
Fermi Liquid

scholarly journals SPECTRAL ANOMALY AND HIGH TEMPERATURE SUPERCONDUCTORS

1996 ◽  
Vol 10 (07) ◽  
pp. 805-845 ◽  
Author(s):  
LAN YIN ◽  
SUDIP CHAKRAVARTY
Keyword(s):  
High Temperature ◽  
Spectral Function ◽  
Superconducting State ◽  
Fermi Liquid ◽  
Cuprate Superconductors ◽  
High Temperature Superconductors ◽  
Universality Class ◽  
Scaling Relation ◽  
Critical System ◽  
Spectral Anomaly

Spectral anomaly for interacting fermions is characterized by the spectral function A ([k − k F ], ω) satisfying the scaling relation A (Λy1 [k − k F ], Λy2 ω) =ΛyA A ([k − k F ], ω), where y1, y2, and yA are the exponents defining the universality class. For a Fermi liquid y1 = 1, y2 = 1, yA = −1; all other values of the exponents are termed anomalous. In this paper, an example for which y1 = 1, y2 = 1, but yA = α − 1 is considered in detail. Attractive interaction added to such a critical system leads to a novel superconducting state, which is explored and its relevance to high temperature cuprate superconductors is discussed.

ELECTRONIC PAIRING AND VARIATION IN THE NORMAL STATE OF METAL

1999 ◽  
Vol 13 (29n31) ◽  
pp. 3467-3471
Author(s):  
LIYUAN ZHANG ◽  
QIANG HAN
Keyword(s):  
Normal State ◽  
Fermi Liquid ◽  
Experimental Studies ◽  
Two Dimension ◽  
Marginal Fermi Liquid

Reviewing the situation of the experimental studies of the normal state in high-Tc super-conductors (HTS), we have put forward nine points to be necessarily considered in any theory of the normal state in HTS. It is argued that the two-dimension two-subsystem model is at least qualitatively consistent with all these nine points. On the basis of these arguments, the problem of the electronic pairing and variation in the normal state of metal has been discussed. We have put forward three variation of metals, i.e. the conventional metal (Fermi liquid), near conventional metal and the metal with the markedly pseudogapped metallic behaviour which may be a marginal Fermi liquid.

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