Review on quasi-2D square planar nickelates

Abstract

In strongly correlated materials, lattice, charge, spin and orbital degrees of freedom interact with each other, leading to emergent physical properties such as superconductivity, colossal magnetic resistance and metal-insulator transition. Quasi-2D square planar nickelates, Rn+1NinO2n+2 (R=rare earth, n=2, 3...), are of significant interest and long sought for cuprate analogue due to the 3d9 electronic configuration of Ni+, the same as the active ion Cu2+ in the high-Tc superconducting cuprates. The field has attracted intense attention since 2019 due to the discovery of superconductivity in thin films of Nd0.8Sr0.2NiO2, although no superconductivity has been reported in bulk polycrystalline powders. Herein, we review the synthesis of polycrystalline powders of quasi-2D square planar nickelates through topotactic reduction of parent compounds that are synthesized via solid state reaction, precursor method, high pressure floating zone method and high-pressure flux method. We emphasize single crystal preparation using the high-pressure floating zone techniques. We discuss their crystal structure and physical properties including resistivity, magnetic susceptibility and heat capacity. We highlight the cuprate-like physics, including charge/spin stripes and large orbital polarization, identified in single crystals of R4Ni3O8 (R=La and Pr) combining synchrotron X-ray/neutron single crystal diffraction and density functional theory calculations. Furthermore, the challenges and possible research directions of this fast-moving field in the future are briefly discussed.

arXiv comment22 pages and 9 figures

References in corpus (66)

• Conventional superconductivity at 203 K at high pressures
• Superconductivity at 250 K in lanthanum hydride under high pressures
• Evidence for superconductivity above 260 K in lanthanum superhydride at megabar pressures
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Antiferromagnetic order and spin dynamics in iron-based superconductors
• Progress and perspectives on the electron-doped cuprates
• High Temperature Superconductivity in Iron Pnictides and Chalcogenides
• Orbital order and possible superconductivity in LaNiO3/LaMO3 superlattices
• Superconducting Dome in Nd${}_{1-x}$Sr${}_x$NiO${}_2$ Infinite Layer Films
• Electronic structure of the parent compound of superconducting infinite-layer nickelates
• Phase diagram and superconducting dome of infinite-layer $\mathrm{N}{\mathrm{d}}_{1-\mathrm{x}}\mathrm{S}{\mathrm{r}}_{\mathrm{x}}\mathrm{Ni}{\mathrm{O}}_2$ thin films
• Infinite Layer LaNiO(2): Ni(1+)is not Cu(2+)
• Fermi Arcs in a Doped Pseudospin-1/2 Heisenberg Antiferromagnet
• A superconducting praseodymium nickelate with infinite layer structure
• Observation of a $d$-wave gap in electron-doped Sr${}_2$IrO${}_4$
• Stripe order in superconducting La(2-x)Ba(x)CuO(4) for 0.095 <= x <= 0.155
• Turning a nickelate Fermi surface into a cuprate-like one through heterostructuring
• The critical nature of the Ni spin state in doped NdNiO${}_2$
• Robust $d_{x^2-y^2}$-wave superconductivity of infinite-layer nickelates
• Model construction and a possibility of cuprate-like pairing in a new d9 nickelate superconductor (Nd,Sr)NiO2
• Late transition-metal oxides with infinite-layer structure: Nickelates versus cuprates
• Nickelate superconductors -- a renaissance of the one-band Hubbard model
• Mimicking cuprates: large orbital polarization in a metallic square-planar nickelate
• Evidence of an odd-parity hidden order in a spin-orbit coupled correlated iridate
• Phase Diagram of Infinite Layer Praseodymium Nickelate Pr${}_{1-x}$Sr${}_x$NiO${}_2$ Thin Films
• Nickelate superconductors $--$ Multiorbital nature and spin freezing
• Absence of superconductivity in bulk Nd${}_{1-x}$Sr${}_x$NiO${}_2$
• Antiferromagnetic correlations in the metallic strongly correlated transition metal oxide LaNiO${}_3$
• Melting of Quasi-Two-Dimensional Charge Stripes in La5/3Sr1/3NiO4
• A substantial hybridization between correlated Ni-d orbital and itinerant electrons in infinite-layer nickelates
• Synthesis and characterization of bulk Nd1-xSrxNiO2 and Nd1-xSrxNiO3
• Intertwined density waves in a metallic nickelate
• Induced magnetic two-dimensionality by hole doping in the superconducting infinite-layer nickelate Nd${}_{1-x}$Sr${}_x$NiO${}_2$
• Stacked Charge Stripes in Quasi-Two_Dimensional Trilayer Nickelate La4Ni3O8
• Square Lattice Iridates
• Lifshitz transition and frustration of magnetic moments in infinite-layer NdNiO${}_2$ upon hole-doping
• Type II $t-J$ model in superconducting nickelate Nd${}_{1-x}$Sr${}_x$NiO${}_2$
• Bulk magnetic order in a two dimensional Ni1+/Ni2+ (d9/d8) nickelate, isoelectronic with superconducting cuprates
• Effective Hamiltonian for superconducting Ni oxides Nd${}_{1-x}$Sr${}_x$NiO${}_2$
• High pressure floating-zone growth of perovskite nickelate LaNiO3 single crystals
• High oxygen pressure floating zone growth and crystal structure of the layered nickelates R${}_4$Ni${}_3$O${}_{10}$ (R=La, Pr)
• Strong Superexchange in a $d^{9-\delta }$ Nickelate Revealed by Resonant Inelastic X-Ray Scattering
• Spin stripe order in a square planar trilayer nickelate
• High pressure floating zone growth and structural properties of ferrimagnetic quantum paraelectric BaFe${}_{12}$O${}_{19}$
• Spins, Stripes, and Superconductivity in Hole-Doped Cuprates
• The silver route to cuprate analogs
• Quantum Confinement Induced Molecular Mott Insulating State in La${}_4$Ni${}_3$O${}_8$
• Resonant elastic soft x-ray scattering in oxygen-ordered YBa_2Cu_3O_{6+delta}
• Neutron scattering studies on stripe phases in non-cuprate materials
• Charge ordering in Ni${}^{1+}$/Ni${}^{2+}$ nickelates: La${}_4$Ni${}_3$O${}_8$ and La${}_3$Ni${}_2$O${}_6$
• Electron doped layered nickelates: spanning the phase diagram of the cuprates
• Brownmillerite Ca2Co2O5: Synthesis, Stability, and Re-entrant Single-Crystal-to-Single-Crystal Structural Transitions
• Formal Valence, $d$ Occupation, and Charge-Order Transitions
• Weak ferromagnetic spin and charge stripe order in La[sub 5/3]Sr[sub 1/3]NiO[sub 4]
• Theoretical investigation of superconductivity in trilayer square-planar nickelates
• Pressure-induced metal-insulator and spin-state transition in low-valence layered nickelates
• Hole superconductivity in infinite-layer nickelates
• Electronic structures and topological properties in nickelates $L{n}_{n+1}$Ni${}_n$O${}_{2n+2}$
• Short-range magnetic interactions and spin-glass behavior in the quasi-2D nickelate Pr4Ni3O8
• Anisotropic character of the metal-to-metal transition in Pr4Ni${}_3$O${}_{10}$
• High-Pressure Laser Floating Zone Furnace
• Charge-stripe order, antiferromagnetism, and spin dynamics in the cuprate-analog nickelate La${}_4$Ni${}_3$O${}_8$
• High pO2 Floating Zone Crystal Growth of the Perovskite Nickelate PrNiO3
• Local Metallic and Structural Properties of the Strongly Correlated Metal LaNiO${}_3$ using ${}^8$Li $\beta$-NMR
• Floating Zone Growth of Sr Substituted Han Purple: Ba${}_{0.9}$Sr${}_{0.1}$CuSi${}_2$O${}_6$
• Antiferromagnetic insulating state in layered nickelates at half-filling

Cited by in corpus (15)

• Signature of superconductivity in pressurized La${}_4$Ni${}_3$O${}_{10}$
• Superconductivity in infinite-layer nickelates
• Design and synthesis of three-dimensional hybrid Ruddlesden-Popper nickelate single crystals
• Infinite-layer nickelate superconductors: A current experimental perspective of the crystal and electronic structures
• Low Valence Nickelates: Launching the Nickel Age of Superconductivity
• Geometric effects in the infinite-layer nickelates
• Preempted phonon-mediated superconductivity in the infinite-layer nickelates
• Epitaxial growth of Ruddlesden-Popper neodymium nickelates Nd${}_{n+1}$Ni${}_n$O${}_{3n+1}$ ($n$ = 1-5)
• Emergent flat-band physics in $d^{9-\delta }$ multilayer nickelates
• Charge-stripe Fluctuations in Nd${}_4$Ni${}_3$O${}_8$ as Evidenced by Optical Spectroscopy
• $\text{Ab initio}$ Materials Design of Superconductivity in $d^9$ Nickelates
• Coherent epitaxy of trilayer nickelate (Nd0.8Sr0.2)4Ni3O10 films by high-pressure magnetron sputtering
• Observation of surface superconductivity in bulk polycrystalline MoS2 induced by electric double-layer doping
• $L{a}_{3}P{d}_{2}Na{O}_9$: A High-Valent Insulating Palladate
• Observation of correlated plasmons in low-valence nickelates