Robust dx2−y2 -wave superconductivity of infinite-layer nickelates

@article{Wu2020RobustD,
  title={Robust 
dx2−y2
-wave superconductivity of infinite-layer nickelates},
  author={Xianxin Wu and Domenico Di Sante and Tilman Schwemmer and Werner Hanke and Harold Y. Hwang and Srinivas Raghu and Ronny Thomale},
  journal={Physical Review B},
  year={2020},
  volume={101},
  pages={060504}
}
Cuprate superconductors have shaped the contemporary state of condensed matter physics. Recently, infinite-layer Nd-doped NiO${}_{2}$ nickelates have initiated a new era of unconventional superconductivity, of which this paper constitutes the first comprehensive theoretical analysis at weak and strong coupling. From a combined perspective of $a\phantom{\rule{0}{0ex}}b$ $i\phantom{\rule{0}{0ex}}n\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}t\phantom{\rule{0}{0ex}}i\phantom{\rule{0}{0ex}}o… Expand

Figures from this paper

Materials design of dynamically stable d9 layered nickelates
Motivated by the recent discovery of superconductivity in the Sr-doped layered nickelate ${\mathrm{NdNiO}}_{2}$, we perform a systematic computational materials design of layered nickelates that areExpand
Electronic structure of rare-earth infinite-layer RNiO2(R=La,Nd)
The discovery of infinite-layer nickelate superconductor marks the new era in the field of superconductivity. In the rare-earth ($R$) nickelates $\mathrm{RNi}{\mathrm{O}}_{2}$, although the Ni isExpand
Strongly correlated doped hole carriers in the superconducting nickelates: Their location, local many-body state, and low-energy effective Hamiltonian
The families of high-temperature superconductors recently welcomed a new member: hole-doped nickelate ${\mathrm{Nd}}_{0.8}{\mathrm{Sr}}_{0.2}{\mathrm{NiO}}_{2}$ with aExpand
Late transition metal oxides with infinite-layer structure: Nickelates versus cuprates
The correlated electronic structure of the infinite-layer compounds ${\mathrm{NdNiO}}_{2}$ and ${\mathrm{SrCuO}}_{2}$ at stoichiometry and with finite hole doping is compared. Key differences areExpand
Exchange interactions and sensitivity of the Ni two-hole spin state to Hund's coupling in doped NdNiO2
The discovery of superconductivity in Nd${}_{1\ensuremath{-}x}$Sr${}_{x}$NiO${}_{2}$ has resulted in a flurry of experimental and theoretical work to understand the nature of nickelateExpand
NMR Evidence of Antiferromagnetic Spin Fluctuations in Nd0.85Sr0.15NiO2
Despite the recent discovery of superconductivity in Nd$_{1-x}$Sr$_{x}$NiO$_2$ thin films, the absence of superconductivity and antiferromagnetism in their bulk materials remain a puzzle. Here weExpand
NMR Evidence of Antiferromagnetism in Nd$_{0.85}$Sr$_{0.15}$NiO$_2$
Despite the recent discovery of superconductivity in Nd$_{1-x}$Sr$_{x}$NiO$_2$ thin films, the absence of superconductivity and antiferromagnetism in their bulk materials remain a puzzle. Here weExpand
Topotactic Hydrogen in Nickelate Superconductors and Akin Infinite-Layer Oxides ABO_{2}.
TLDR
The topotactic H binding energy by density functional theory (DFT) is calculated and finds intercalating H to be energetically favorable for LaNiO_{2} but not for Sr-doped NdNiO_2, which might explain why some nickelates are superconducting and others are not. Expand
A "road-map" of Nickelate superconductivity
We comment on the electronic structure of Nickelate system $Nd Ni O_2$ which shows superconductivity on doping. The doped system $Nd_{0.8}Sr_{0.2}NiO_2$ shows (most probably unconventional)Expand
Single particle tunneling spectrum of superconducting Nd1-xSrxNiO2 thin films
TLDR
The results indicate both similarities and distinctions between the newly found Ni-based superconductors and cuprates and single-particle tunneling measurements on the superconducting nickelate thin films. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 75 REFERENCES
Formation of a two-dimensional single-component correlated electron system and band engineering in the nickelate superconductor NdNiO2
Motivated by the discovery of the nickelate superconductor Nd${}_{0.8}$Sr${}_{0.2}$NiO${}_{2}$, the authors construct an effective low-energy Hamiltonian for the parent compound NdNiO${}_{2}$, whichExpand
Infinite-layerLaNiO2: Ni1+is notCu2+
The Ni ion in $\mathrm{La}\mathrm{Ni}{\mathrm{O}}_{2}$ has the same formal ionic configuration $3{d}^{9}$ as does Cu in isostructural $\mathrm{Ca}\mathrm{Cu}{\mathrm{O}}_{2}$, but it is reported toExpand
Superconductivity in the repulsive Hubbard model: An asymptotically exact weak-coupling solution
We study the phase diagram of the Hubbard model in the limit where $U$, the onsite repulsive interaction, is much smaller than the bandwidth. We present an asymptotically exact expression forExpand
Superconductivity in an infinite-layer nickelate
TLDR
The observation of superconductivity in an infinite-layer nickelate that is isostructural to infinite- Layer copper oxides11–13 and the possibility of a family of nickelate superconductors analogous to Copper oxides and pnictides25 is suggested. Expand
Electronic structure of possible nickelate analogs to the cuprates
The electronic structure of various nickel oxides with nickel valence varying from 1+ to 3+ was investigated with the aim to find similarities and differences to the isoelectronic cuprates. Only ifExpand
Phase-sensitive tests of the symmetry of the pairing state in the high-temperature superconductors-Evidence for d x 2 -y 2 symmetry
Understanding the mechanism responsible for superconductivity in the high-temperature cuprates has been one of the major goals of condensed-matter physicists since the discovery of these excitingExpand
From ultrasoft pseudopotentials to the projector augmented-wave method
The formal relationship between ultrasoft (US) Vanderbilt-type pseudopotentials and Bl\"ochl's projector augmented wave (PAW) method is derived. It is shown that the total energy functional for USExpand
Observation of a d-wave gap in electron-doped Sr2IrO4
Sr2IrO4 bears a striking electronic resemblance to the cuprate superconductors, except the iridate is an insulator. Introducing electrons into Sr2IrO4 leads to a d-wave gap, suggestingExpand
Superconductivity in a layered perovskite without copper
FOLLOWING the discovery of superconductivity at ∼30 K in La2−xBaxCuO4 (ref. 1), a large number of related compounds have been found that are superconducting at relatively high temperatures. TheExpand
Effective Hamiltonian for the superconducting Cu oxides.
  • Zhang, Rice
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 1988
Although assuming that doping creates holes primarily on oxygen sites, we derive explicitly a single-band effective Hamiltonian for the high-${T}_{c}$ Cu-oxide superconductors. Cu-O hybridizationExpand
...
1
2
3
4
5
...