Superconductivity in nickel based 112 systems

Abstract

Superconductivity has been discovered recently in nickel based 112 infinite thin films $R_{1-x}$A${}_x$NiO${}_2$ ($R$ = La, Nd, Pr and A = Sr, Ca). They are isostructural to the infinite-layer cuprate (Ca,Sr)CuO${}_2$ and are supposed to have a formal Ni 3$d^9$ valence, thus providing a new platform to study the unconventional pairing mechanism of high-temperature superconductors. This important discovery immediately triggers a huge amount of innovative scientific curiosity in the field. In this paper, we try to give an overview of the recent research progress on the newly found superconducting nickelate systems, both from experimental and theoretical aspects. We will focus mainly on the electronic structures, magnetic excitations, phase diagrams, superconducting gaps and finally make some open discussions for possible pairing symmetries in Ni based 112 systems.

53 pages,10 figures,submitted to The Innovation

References in corpus (31)

• Superconductivity at 43 K in Samarium-arsenide Oxides $SmFeAs{O}_{1-x}{F}_x$
• Theory of Intertwined Orders in High Temperature Superconductors
• Scanning tunneling spectroscopy of high-temperature superconductors
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Calculations of Hubbard U from first-principles
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Iron-Based Superconductors: current status of materials and pairing mechanism
• Orbital order and possible superconductivity in LaNiO3/LaMO3 superlattices
• A Phenomenological Theory of The Pseudogap State
• A superconducting praseodymium nickelate with infinite layer structure
• Nickelate superconductivity without rare-earth magnetism: (La,Sr)NiO${}_2$
• Self-doped Mott insulator for parent compounds of nickelate superconductors
• Late transition-metal oxides with infinite-layer structure: Nickelates versus cuprates
• Phenomenology of the normal state in-plane transport properties of high-$T_c$ cuprates
• Nickelate superconductors $--$ Multiorbital nature and spin freezing
• Evidence of Andreev bound states as a hallmark of the FFLO phase in $\kappa$-(BEDT-TTF)${}_2$Cu(NCS)${}_2$
• Low-energy microscopic models for iron-based superconductors: a review
• Fulde-Ferrell-Larkin-Ovchinnikov state in a perpendicular field of quasi two-dimensional CeCoIn5
• Synthesis and characterization of bulk Nd1-xSrxNiO2 and Nd1-xSrxNiO3
• Electronic structure of rare-earth infinite-layer ReNiO2 (Re=La, Nd)
• Two-band model for magnetism and superconductivity in nickelates
• Orbital Selective Superconductivity in a Two-band Model of Infinite-Layer Nickelates
• Spin stripe order in a square planar trilayer nickelate
• Fluctuation-frustrated flat band instabilities in NdNiO2
• The dawn of the nickel age of superconductivity
• Electronic correlations and magnetic interactions in infinite-layer NdNiO${}_2$
• Surface $s$-wave superconductivity for oxide-terminated infinite-layer nickelates
• Electronic Theory for Scanning Tunneling Microscopy Spectra in Infinite-Layer Nickelate Superconductors
• Proposed ordering of textured spin singlets in a bulk infinite layer nickelate
• Single-layer T'-type nickelates: Ni${}^{1+}$ is Ni${}^{1+}$
• Magnetic excitations in infinite-layer nickelates

Cited by in corpus (8)

• Pressure-induced monotonic enhancement of Tc to over 30 K in the superconducting Pr0.82Sr0.18NiO2 thin films
• Self-doping and the Mott-Kondo scenario for infinite-layer nickelate superconductors
• Synthesis and Properties of La${}_{1-x}$Sr${}_x$NiO${}_3$ and La${}_{1-x}$Sr${}_x$NiO${}_2$
• Distinct electridelike nature of infinite-layer nickelates and the resulting theoretical challenges to calculate their electronic structure
• Hund bands in spectra of multiorbital systems
• An emerging global picture of heavy fermion physics
• Nematic fluctuations in the non-superconducting iron pnictide BaFe${}_{1.9-x}$Ni${}_{0.1}$Cr${}_x$As${}_2$
• $\text{Ab initio}$ Materials Design of Superconductivity in $d^9$ Nickelates