Non-monotonic pseudo-gap in high-Tc cuprates

Abstract

The mechanism of high temperature superconductivity is not resolved for so long because the normal state of cuprates is not yet understood. Here we show that the normal state pseudo-gap exhibits an unexpected non-monotonic temperature dependence, which rules out the possibility to describe it by a single mechanism such as superconducting phase fluctuations. Moreover, this behaviour, being remarkably similar to the behaviour of the charge ordering gap in the transition-metal dichalcogenides, completes the correspondence between these two classes of compounds: the cuprates in the PG state and the dichalcogenides in the incommensurate charge ordering state reveal virtually identical spectra of one-particle excitations as function of energy, momentum and temperature. These results suggest that the normal state pseudo-gap, which was considered to be very peculiar to cuprates, seems to be a general complex phenomenon for 2D metals. This may not only help to clarify the normal state electronic structure of 2D metals but also provide new insight into electronic properties of 2D solids where the metal-insulator and metal-superconductor transitions are considered on similar basis as instabilities of particle-hole and particle-particle interaction, respectively.

References in corpus (19)

• The pseudogap in high-temperature superconductors: an experimental survey
• Hidden Order in the Cuprates
• Destruction of the Fermi Surface in Underdoped High Tc Superconductors
• A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
• The pseudogap: friend or foe of high Tc?
• Electron pockets in the Fermi surface of hole-doped high-Tc superconductors
• Two Gaps Make a High Temperature Superconductor?
• Distinct Fermi-Momentum Dependent Energy Gaps in Deeply Underdoped Bi2212
• Two Energy Scales and two Quasiparticle Dynamics in the Superconducting State of Underdoped Cuprates
• Phase Fluctuations and Pseudogap Phenomena
• The Ground State of the Pseudogap in Cuprate Superconductors
• Pseudogap and charge density waves in two dimensions
• Evidence for two energy scales in the superconducting state of optimally doped (Bi,Pb)2(Sr,La)2CuO6+d
• Pseudogaps in Strongly Correlated Metals: A generalized dynamical mean-field theory approach
• Direct observation of particle-hole mixing in the superconducting state by angle-resolved photoemission
• Measuring the gap in ARPES experiments
• Phenomenological description of the two energy scales in underdoped superconducting cuprates
• Properties of charge density waves in La${}_{2-x}$Ba${}_x$CuO${}_4$
• Change of quasiparticle dispersion in crossing T_c in the underdoped cuprates

Cited by in corpus (20)

• Iron based superconductors: magnetism, superconductivity and electronic structure
• Two energy gaps and Fermi surface 'arcs' in NbSe2
• Pseudogap from ARPES experiment: three gaps in cuprates and topological superconductivity
• Spin-Fluctuation-Driven Nematic Charge-Density-Wave in Cuprate Superconductors: Impact of Aslamazov-Larkin-Type Vertex Correction
• A Tale of Two Metals: contrasting criticalities in the pnictides and hole-doped cuprates
• ARPES experiment in fermiology of quasi-2D metals (Review Article)
• An ARPES view on the high-Tc problem: phonons vs spin-fluctuations
• Phase transition and anomalous electronic behavior in layered dichalcogenide CuS (covellite) probed by NQR
• Temperature-dependent Fermi surface of 2H-TaSe2 driven by competing density wave order fluctuations
• Competing charge density waves and temperature-dependent nesting in 2H-TaSe2
• Electronic band structure of optimal superconductors: from cuprates to ferropnictides and back again
• Coherent quasi-particles-to-incoherent hole-carriers crossover in underdoped cuprates
• Bridging charge-orbital ordering and Fermi surface instabilities in half-doped single-layered manganite La_0.5Sr_1.5MnO_4
• Electronic structure of Pr_{2-x}Ce_xCuO_4 studied via ARPES and LDA+DMFT+Σ_k
• Superconducting pairing and the pseudogap in nematic striped La2-xSrxCuO4
• Multilayered cuprate superconductor Ba${}_2$Ca${}_5$Cu${}_6$O${}_{12}$(O${}_{1-x}$,F${}_x$)${}_2$ studied by temperature-dependent scanning tunneling microscopy and spectroscopy
• Anomalously enhanced photoemission from the Dirac point and symmetry of the self-energy variations for the surface states in Bi2Se3
• Controlling the carrier concentration of the high temperature superconductor Bi2Sr2CaCu2O{8+x} in Angle Resolved Photoemission Spectroscopy (ARPES) experiments
• ARPES spectral functions and Fermi surface for La(1.86)Sr(0.14)CuO(4) compared with LDA+DMFT+Sk calculations
• Linear Scaling of the Superfluid Density with the Critical Temperature in the Layered Superconductor 2H-NbSe_2