Multiple electronic components and Lifshitz transitions by oxygen wires formation in layered cuprates and nickelates

Abstract

There is a growing compelling experimental evidence that a quantum complex matter scenario made of multiple electronic components, and competing quantum phases is needed to grab the key physics of high critical temperature (Tc) superconductivity in layered cuprates. While it is known that defects self-organization controls Tc, the mechanism remains an open issue. Here we focus on the theoretical prediction of the multi-band electronic structure and the formation of broken Fermi surfaces generated by the self-organization of oxygen interstitials O-i atomic wires in the spacer layers in HgBa2CuO4+y, La2CuO4+y and La2NiO4+y, by means of self-consistent Linear Muffin-Tin Orbital (LMTO) calculations. The electronic structure of a first phase of ordered O-i atomic wires and of a second glassy phase made of disordered O-i impurities have been studied through supercell calculations. We show the common features of the influence of O-i wires in the electronic structure in three type of materials. The ordering of O-i into wires lead to a separation of the electronic states between the O-i ensemble and the rest of the bulk. The wires formation produce first quantum confined localized states near the wire which coexist with second delocalized states in the Fermi-surface (FS) of doped cuprates. In this new scenario for high Tc superconductivity, Kitaev wires with Majorana bound states are proximity-coupled to a 2D d-wave superconductor in cuprates.

9 pages, 10 figures. arXiv admin note: text overlap with arXiv:1711.05178

References in corpus (51)

• Unpaired Majorana fermions in quantum wires
• Angle-resolved photoemission spectroscopy of the cuprate superconductors
• Majorana Fermions and a Topological Phase Transition in Semiconductor-Superconductor Heterostructures
• Search for Majorana fermions in superconductors
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• Scale-free structural organization of oxygen interstitials in La2CuO4+y
• Nanoscale phase separation in the iron chalcogenide superconductor K0.8Fe1.6Se2 as seen via scanning nanofocused x-ray diffraction
• Evolution and Control of Oxygen Order in a Cuprate Superconductor
• The gap amplification at a "shape resonance" in a superlattice of quantum stripes: a mechanism for high Tc
• Intrinsic phase separation in superconducting K0.8Fe1.6Se2 (Tc= 31.8 K) single crystals
• Quantum Materials: Shape Resonances in Superstripes
• Inhomogeneous superconductivity and the "pseudogap state of novel superconductors
• Breakdown of the Migdal approximation at Lifshitz transitions with giant zero-point motion in H3S superconductor
• A model for the phase separation controlled by doping and the internal chemical pressure in different cuprate superconductors
• Superconductivity above the lowest Earth temperature in pressurized sulfur hydride
• Supercondutor-Insulator Transition on Annealed Complex Networks
• Electronic structure and properties of pure and doped $\epsilon$-FeSi from ab-initio local density theory
• Direct observation of nanoscale interface phase in the superconducting chalcogenide K${}_x$Fe${}_{2-y}$Se${}_2$ with intrinsic phase separation
• Enhanced Superconductivity in Sr2CuO4-v
• Anomalous isotope effect near a 2.5 Lifshitz transition in a multi-band multi-condensate superconductor made of a superlattice of stripes
• Screening of pair fluctuations in superconductors with coupled shallow and deep bands: a route to higher temperature superconductivity
• Out of plane effect on the superconductivity of Sr2-xBaxCuO3+y with Tc up to 98K
• Effects of spin-phonon interaction on the properties of in high-T${}_C$ superconductors
• Stripe-like nanoscale structural phase separation and optimal inhomogeneity in superconducting BaPb${}_{1-x}$Bi${}_x$O${}_3$
• Multiscale distribution of oxygen puddles in 1/8 doped YBa2Cu3O6.67
• Scanning micro X-ray diffraction unveils the distribution of oxygen chains nano-puddles in YBa2Cu3O6.33
• High Tc superconductivity at a critical strain and charge density in diborides
• Spin fluctuations, electron-phonon coupling and superconductivity in near-magnetic elementary metals; Fe,Co,Ni and Pd
• Intrinsic arrested nanoscale phase separation near a topological Lifshitz transition in strongly correlated two-band metals
• Superconductivity and Cobalt Oxidation State in Metastable Na(x)CoO(2-delta)*yH2O (x ~ 1/3; y ~ 4x)
• Ferromagnetic and antiferromagnetic spin fluctuations and superconductivity in the hcp-phase of Fe
• High Temperature superconductivity in a hyperbolic geometry of complex matter from nanoscale to mesoscopic scale
• Majorana bound states in a disordered quantum dot chain
• Fermi surface reconstruction of superoxygenated La${}_2$CuO${}_4$ with ordered oxygen interstitials
• Nanoscale interplay of strain and doping in a high-temperature superconductor
• The Feshbach resonance and nanoscale phase separation in a polaron liquid near the quantum critical point for a polaron Wigner crystal
• Networks of superconducting nano-puddles in 1/8 doped YBa2Cu3O6.5+y controlled by thermal manipulation
• Evidence for strong lattice effects as revealed from huge unconventional oxygen isotope effects on the pseudogap temperature in La${}_{2-x}$Sr${}_x$CuO${}_4$
• Enhancement of Tc in the Superconductor-Insulator Phase Transition on Scale-Free Networks
• Superconductor-insulator transition in a network of 2d percolation clusters
• The role of thermal disorder for magnetism and the $\alpha -\gamma$ transition in Cerium; Results from density-functional theory
• Different doping from apical and planar oxygen vacancies in Ba${}_2$CuO${}_{4-\delta }$ and La${}_2$CuO${}_{4-\delta }$
• Spin-phonon interaction and band effects in the high-T_C superconductor HgBa_2CuO_4
• Properties of high-T${}_C$ copper oxides from the nearly-free electron model
• Mechanisms for higher $T_C$ in copper oxide superconductors; Ideas from band calculations
• Electronic structure of superoxygenated La2NiO4 domains with ordered oxygen interstitials
• Bands, spin fluctuations and traces of Fermi surfaces in angle-resolved photoemission intensities for high-$T_C$ cuprates
• Effects of excess or deficiency of oxygen content on the electronic structure of high-$T_C$ cuprates
• Electronic structure and properties of superconducting materials with simple Fermi surfaces
• Superconductivity at the vacancy disorder boundary in K${}_x$Fe${}_{2-y}$Se${}_2$
• Electronic structure of HgBa${}_2$CuO${}_{4+\delta }$ with self-organized interstitial oxygen wires in the Hg spacer planes

Cited by in corpus (6)

• Fermi-Bose mixtures and BCS-BEC crossover in high-Tc superconductors
• Room temperature superconductivity dome at a Fano resonance in superlattices of wires
• Orbital Symmetry and Orbital Excitations in High-$T_c$ Superconductors
• Evaluating Superconductors through Current Induced Depairing
• Scale free distribution of oxygen interstitials wires in optimum doped HgBa${}_2$CuO${}_{4+y}$
• Character of Doped Holes in Nd${}_{1-x}$Sr${}_x$NiO${}_2$