Two Gaps Make a High Temperature Superconductor?

Abstract

One of the keys to the high-temperature superconductivity puzzle is the identification of the energy scales associated with the emergence of a coherent condensate of superconducting electron pairs. These might provide a measure of the pairing strength and of the coherence of the superfluid, and ultimately reveal the nature of the elusive pairing mechanism in the superconducting cuprates. To this end, a great deal of effort has been devoted to investigating the connection between the superconducting transition temperature Tc and the normal-state pseudogap crossover temperature T*. Here we present a review of a large body of experimental data that suggests a coexisting two-gap scenario, i.e. superconducting gap and pseudogap, over the whole superconducting dome.

Related material can be found at http://www.physics.ubc.ca/~quantmat/ARPES/PUBLICATIONS/articles.html

References in corpus (11)

• Scanning tunneling spectroscopy of high-temperature superconductors
• Inelastic Light Scattering From Correlated Electrons
• An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
• Visualizing pair formation on the atomic scale in the high-Tc superconductor Bi2Sr2CaCu2O8+d
• Distinct Fermi-Momentum Dependent Energy Gaps in Deeply Underdoped Bi2212
• Interplay of electron-lattice interactions and superconductivity in Bi2Sr2CaCu2O8+d
• The Ground State of the Pseudogap in Cuprate Superconductors
• Low-Energy Electronic Structure of the High-Tc Cuprates La2-xSrxCuO4 Studied by Angle-resolved Photoemission Spectroscopy
• Tl2Ba2CuO6+d Brings Spectroscopic Probes Deep Into the Overdoped Regime of the High-Tc Cuprates
• Phenomenological description of the two energy scales in underdoped superconducting cuprates
• Magnetic-field-induced spin excitations and renormalized spin gap of the underdoped superconductor La${}_{1.895}$Sr${}_{0.105}$CuO${}_4$

Cited by in corpus (17)

• Lattice symmetry breaking in cuprate superconductors: Stripes, nematics, and superconductivity
• How Cooper pairs vanish approaching the Mott insulator in Bi2Sr2CaCu2O8+d
• Striped superconductors: How the cuprates intertwine spin, charge and superconducting orders
• Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2
• High - Temperature Superconductivity in Iron Based Layered Compounds
• Coexistence of competing orders with two energy gaps in real and momentum space in high-Tc superconductor Bi2Sr2-xLaxCuO6+delta
• Two-stage metal-insulator transition in the 2D Hubbard model: momentum selectivity in the 8-site dynamical cluster approximation
• The doping-driven evolution of the superconducting state of a doped Mott insulator: a key for the high temperature superconductivity
• Non-monotonic pseudo-gap in high-Tc cuprates
• The nodal gap component as a good candidate for the superconducting order parameter in cuprates
• Paired electron pockets in the hole-doped cuprates
• Universal Behavior and the Two-component Character of Magnetically Underdoped Cuprate Superconductors
• Andreev reflection and order parameter symmetry in heavy-fermion superconductors: the case of CeCoIn${}_5$
• Specific heat of underdoped cuprates: RVB versus Fermi arcs
• A proximity induced pseudogap - evidence for preformed pairs
• A model of a 2d non-Fermi liquid with SO(5) symmetry, AF order, and a d-wave SC gap
• Momentum dependence of the energy gap in the superconducting state of optimally doped Bi2(Sr,R)2CuOy (R=La and Eu)