High-T_c Cuprates: a Story of Two Electronic Subsystems

2022/03/18 by Neven Barišić, N. Barišić, D. K. Sunko +1 · 30 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Cuprate #Delocalized electron #Doping #Electron #Electronic structure #Fermi level #Fermi liquid theory #Ion #Ionic bonding #Magnetic and transport properties of perovskites and related materials #Materials science #Phase (matter) #Phase diagram #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Superconductivity #Universality (dynamical systems) #cond-mat.str-el #cond-mat.supr-con

paper · pdf · doi:10.1007/s10948-022-06183-y

published in Journal of Superconductivity and Novel Magnetism 35(7), 1781-1799 (Springer Science+Business Media) · Dedicated to Prof. Karl Alex Müller on the occasion of his 95th birthday

openalex publication_date 2022/03/18 · openalex created_date 2022/04/03 · arxiv created 2022/04/07 · arxiv updated 2022/04/08 · openalex updated_date 2026/08/05

Abstract

Abstract A review of the phenomenology and microscopy of cuprate superconductors is presented, with particular attention to universal conductance features, which reveal the existence of two electronic subsystems. The overall electronic system consists of 1+p <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>1</mml:mn> <mml:mo>+</mml:mo> <mml:mi>p</mml:mi> </mml:mrow> </mml:math> charges, where p is the doping. At low dopings, exactly one hole is localized per planar copper–oxygen unit, while upon increasing doping and temperature, the hole is gradually delocalized and becomes itinerant. Remarkably, the itinerant holes exhibit identical Fermi liquid character across the cuprate phase diagram. This universality enables a simple count of carrier density and yields comprehensive understanding of the key features in the normal and superconducting state. A possible superconducting mechanism is presented, compatible with the key experimental facts. The base of this mechanism is the interaction of fast Fermi liquid carriers with localized holes. A change in the microscopic nature of chemical bonding in the copper oxide planes, from ionic to covalent, is invoked to explain the phase diagram of these fascinating compounds.

Citations

• Possible highT c superconductivity in the Ba?La?Cu?O system
• In-Plane Magnetoresistance Obeys Kohler’s Rule in the Pseudogap Phase of Cuprate Superconductors
• Electronic pseudogap of optimally doped high-temperatureNd2−xCexCuO4superconductors
• Electronic Liquid Crystal State in the High-Temperature Superconductor YBa 2 Cu 3 O 6.45
• New class of T′-structure cuprate superconductors
• Universal quantum oscillations in the underdoped cuprate superconductors
• Origin of the Pseudogap in High-Temperature Cuprate Superconductors
• Existence of Long-Range Order in One and Two Dimensions
• Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models
• Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor
• Fermion kinetics in the Falicov-Kimball limit of the three-band Emery model
• Non-generality of the Kadowaki–Woods Ratio in Correlated Oxides
• Unified electronic phase diagram for hole-doped high-Tccuprates
• Intra-unit-cell electronic nematicity of the high-Tc copper-oxide pseudogap states
• Disorder, metal-insulator crossover and phase diagram in high-T c cuprates
• Interface induced high temperature superconductivity in single unit-cell FeSe films on SrTiO3
• Non-Fermi-liquid states and pairing instability of a general model of copper oxide metals
• Destruction of the Fermi surface in underdoped high-Tc superconductors
• Perspective on the phase diagram of cuprate high-temperature superconductors
• Evidence for a universal Fermi-liquid scattering rate throughout the phase diagram of the copper-oxide superconductors
• Diagonal nematicity in the pseudogap phase of HgBa2CuO4+δ
• Physical limitations of the Hohenberg-Mermin-Wagner theorem
• Arc-to-pocket transition and quantitative understanding of transport properties in cuprate superconductors