Correlated electronic structure of a quintuple-layer nickelate
arXiv:2111.14739 · doi:10.1103/PhysRevB.105.085118
Abstract
We present a comparative density-functional theory plus dynamical mean-field theory (DFT+DMFT) study of the two known superconducting members of the rare-earth (R) layered nickelate family: hole-doped RNiO () and RNiO (). At the same nominal carrier concentration, these two materials exhibit nearly identical electronic structures and many-body correlations effects: mass enhancements, self-energies, and occupations. However, the fermiology of the quintuple-layer nickelate is more two-dimensional-like than its infinite-layer counterpart making this new superconducting quintuple-layer nickelate more cuprate-like without the need for chemical doping.
arXiv comment11 pages, 11 figures
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