Self-doped Mott insulator for parent compounds of nickelate superconductors
By Guang-Ming Zhang, Yi-feng Yang, Fu-Chun Zhang. Physical review B, 2019
164 citations recorded by the source corpus.
Motivated by analyses of the reported electrical resistivity and Hall coefficient data in the normal state, the authors propose that the parent compound of the newly discovered superconducting nickelate Nd${}_{1\ensuremath{-}x}$Sr${}_{x}$NiO${}_{2}$ is a self-doped Mott insulator, in which the low-density Nd $5d$ conduction electrons couple to localized Ni 3${d}_{{x}^{2}\ensuremath{-}{y}^{2}}$ electrons to form Kondo spin singlets at low temperature. The antiferromagnetic long-range order is suppressed and an insulator-metal transition results.
Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials
View Paper: https://www.semanticscholar.org/paper/238b0fd3871166b1c8ee3196b385b9c9178a3914
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In Condensed Matter Physics
In Electronic, Optical and Magnetic Materials
Citations in the corpus
- Absence of superconductivity in bulk Nd1−xSrxNiO2 (2019, unknown): “2NiO2 as a self-doped Mott insulator ([26]).”
- A substantial hybridization between correlated Ni-d orbital and itinerant electrons in infinite-layer nickelates (2019, methodology): “Such a screening mechanism may be used to explain the low-temperature upturn in the resistivity of NdNiO2 observed in experiment [15, 27].”