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

@article{Wu2019RobustD,
  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={2019}
}
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… 

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References

SHOWING 1-10 OF 72 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${}_{2}$, which

Similarities and Differences between LaNiO2 and CaCuO2 and Implications for Superconductivity

We have revisited the electronic structure of infinite-layer RNiO$_2$ (R= La, Nd) in light of the recent discovery of superconductivity in Sr-doped NdNiO$_2$. From a comparison to their cuprate

Superconductivity in an infinite-layer nickelate

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.

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 exciting

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 US

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 if

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 to

Sodium Hydride as a Powerful Reducing Agent for Topotactic Oxide Deintercalation: Synthesis and Characterization of the Nickel(I) Oxide LaNiO2

The capability of sodium hydride as a reducing agent in oxide deintercalation reactions is explored. The Ni(III) perovskite LaNiO3 can be reduced topotactically to LaNiO2, isostructural with the
...