Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Landscape of coexisting excitonic states in the insulating single-layer cuprates and nickelates

Journal Article · · Physical Review. B
We present an ab initio study of the excitonic states of a prototypical high-temperature superconductor La2CuO4 and compare them to the isostructural single-layer nickelate La2NiO4. A key difference in the low-energy electronic structure leads to very different excitonic behavior. Excitons in La2CuO4 are delocalized and can freely move in the CuO2 plane without disturbing the antiferromagnetic order. In contrast, in La2NiO4, we find the low-lying excitonic states to be extremely localized, producing a nearly flat dispersion. The theoretically obtained excitonic dispersion and behavior are in excellent agreement with RIXS observations. To classify the excitons, we project the electron-hole coupling onto each atomic site including the full manifold of atomic orbitals. We find the excitons to be composed of a linear combination of exciton classes, including Mott-Hubbard, d-d, and charge-transfer. The implication of these excitations to the high-Tc pairing mechanism is also discussed.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1659215
Report Number(s):
LA-UR--20-21955
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 15 Vol. 101; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (73)

The topological significance of saddle point van Hove singularities: a comparison of orbital switching and magnetic breakdown journal April 1994
Realistic investigations of correlated electron systems with LDA + DMFT journal September 2006
A Cud-d excitation model for the pairing in the high-T c cuprates journal September 1988
The case for dx2 − y2 pairing in the cuprate superconductors journal January 1995
The Cu d-d excitation model: Studies of the insulating limit journal December 1989
Synthesis and transport properties of La2NiO4 journal November 2009
Basic Aspects of The Quantum Theory of Solids: Order and Elementary Excitations book January 2010
Transition Metal Compounds book January 2014
Real-Space Pairing through Charge Transfer Excitons in High- T C Cuprates journal December 2008
Exciton-Plasmon States in Nanoscale Materials: Breakdown of the Tamm−Dancoff Approximation journal August 2009
Spin–orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3 journal April 2012
Excitonic quasiparticles in a spin–orbit Mott insulator journal July 2014
Origin of band gaps in 3d perovskite oxides journal April 2019
Superconductivity in an infinite-layer nickelate journal August 2019
Local particle-hole pair excitations by SU(2) symmetry fluctuations journal June 2017
An accurate first-principles treatment of doping-dependent electronic structure of high-temperature cuprate superconductors journal March 2018
The Jahn-Teller effect and magnetism: transition metal compounds journal April 1982
Understanding band gaps of solids in generalized Kohn–Sham theory journal March 2017
Competing stripe and magnetic phases in the cuprates from first principles journal December 2019
Intermediate coupling model of the cuprates journal May 2014
Exciton dispersion in molecular solids journal March 2015
Neutron diffraction study on structural and magnetic properties of La 2 NiO 4 journal May 1991
Charge self-consistent many-body corrections using optimized projected localized orbitals journal November 2018
Bose-Einstein Condensation of Excitons journal June 1962
Inhomogeneous Electron Gas journal November 1964
Self-Consistent Equations Including Exchange and Correlation Effects journal November 1965
Mott gapping in 3 d A B O 3 perovskites without Mott-Hubbard interelectronic repulsion energy U journal July 2019
First-principles calculation of spin and orbital contributions to magnetically ordered moments in Sr 2 IrO 4 journal April 2020
d -wave pairing near a spin-density-wave instability journal December 1986
Layer plasmons and high- T c superconductivity journal May 1988
Superconducting phase of La 2 Cu O 4 + δ : A superconducting composition resulting from phase separation journal December 1988
Charge-transfer mechanisms for high- T c superconductivity journal September 1988
Electronic structure of La 2 − x Sr x NiO 4 studied by photoemission and inverse-photoemission spectroscopy journal June 1992
Ab initio molecular dynamics for open-shell transition metals journal November 1993
Acoustic plasmons and cuprate superconductivity journal August 1993
Local-density functional and on-site correlations: The electronic structure of La 2 CuO 4 and LaCuO 3 journal May 1994
Excitons in Magnetic Insulators with Reference to the Hubbard Model journal February 1972
Density-functional theory and strong interactions: Orbital ordering in Mott-Hubbard insulators journal August 1995
Generalized Kohn-Sham schemes and the band-gap problem journal February 1996
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
Excitons in insulating cuprates journal August 1996
Electron-energy-loss spectra and the structural stability of nickel oxide: An LSDA+U study journal January 1998
Elementary excitations in the coupled spin-orbital model journal October 1998
Theory of excitons in the insulating C u − O 2 plane journal November 1998
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Excitons in the strong coupling limit of the one-dimensional extended Hubbard model journal May 2002
Excitons in Mott insulators journal July 2002
Electronic collective modes and superconductivity in layered conductors journal October 2003
Model for an Exciton Mechanism of Superconductivity journal February 1973
One-band tight-binding model parametrization of the high- T c cuprates including the effect of k z dispersion journal August 2005
Excited states of biological chromophores studied using many-body perturbation theory: Effects of resonant-antiresonant coupling and dynamical screening journal December 2009
DFT +  U study of magnetic order in doped La 2 CuO 4 crystals journal August 2011
Exciton condensation in strongly correlated electron bilayers journal December 2013
Beyond the Tamm-Dancoff approximation for extended systems using exact diagonalization journal July 2015
Effective SU(2) theory for the pseudogap state journal March 2017
Spinon-orbiton repulsion and attraction mediated by Hund's rule journal August 2018
Antiferromagnetic ground state of La 2 CuO 4 : A parameter-free ab initio description journal September 2018
Cluster Dynamical Mean Field Theory of the Mott Transition journal October 2008
Exciton Doublet in the Mott-Hubbard Insulator LiCuVO 4 Identified by Spectral Ellipsometry journal October 2009
Intrinsic Coupling of Orbital Excitations to Spin Fluctuations in Mott Insulators journal September 2011
Strongly Constrained and Appropriately Normed Semilocal Density Functional journal July 2015
Excitons in Mott-Hubbard Insulators journal August 1971
Band gaps and electronic structure of transition-metal compounds journal July 1985
Resonant Inelastic X-Ray Scattering Study of Charge Excitations in L a 2 C u O 4 journal October 2002
Localized and Delocalized Excitons: Resonant Inelastic X-Ray Scattering in La 2 − x Sr x NiO 4 and La 2 − x Sr x CuO 4 journal April 2006
Converged G W quasiparticle energies for transition metal oxide perovskites journal February 2018
Relativistic G W +BSE study of the optical properties of Ruddlesden-Popper iridates journal July 2018
Magnetic, transport, and optical properties of monolayer copper oxides journal July 1998
Electronic structure calculations with dynamical mean-field theory journal August 2006
A common thread: The pairing interaction for unconventional superconductors journal October 2012
Imaging Doped Holes in a Cuprate Superconductor with High-Resolution Compton Scattering journal April 2011
THE PROBLEM OF HIGH-TEMPERATURE SUPERCONDUCTIVITY. II [Проблема высокотемпературной сверхпроводимости. II] journal January 1970
Excitons and Dark Fermions as Origins of Mott Gap, Pseudogap and Superconductivity in Cuprate Superconductors — General Concept and Basic Formalism Based on Gap Physics journal February 2019

Similar Records

Electronic excitations around the substituted atom in La2Cu1 -yNiyO4 as seen via resonantinelastic x-ray scattering
Journal Article · Wed Mar 14 00:00:00 EDT 2012 · Physical Review. B, Condensed Matter and Materials Physics · OSTI ID:1046996

Realistic electronic structure calculations for magnetic insulators like La sub 2 CuO sub 4 (US)
Journal Article · Sun Jan 27 23:00:00 EST 1991 · Physical Review Letters; (USA) · OSTI ID:5963228

Stripe order of holes and spins in oxygen doped nickelates
Conference · Fri Oct 31 23:00:00 EST 1997 · OSTI ID:548704