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Doping-dependent Character and Possible Magnetic Ordering of <Mml:math Xmlns:mml=" by Lechermann, Frank (author) is a Materials Science article available to read on EtoBox.
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The novel nickelate superconductors of infinite-layer type feature challenging electronic pecularities in the normal-state phase diagram with doping. Distinct many-body behavior and different dispersion regimes of the entangled {Ni-d z 2 , Ni-d x 2 -y 2 } orbital sector give rise to highly rich physics, which is here studied for the case of the NdNiO 2 system. An analysis based on advanced realistic dynamical mean-field theory unveils that the superconducting hole-doped region is the meeting place of a (self-)doped Mott insulator from the underdoped side, and a bad Hund metal from the overdoped side. Fermi-level crossing of the Ni-d z 2 flat-band ties both regimes together to form a singular arena for unconventional superconductivity. We furthermore shed light on the intriguing problem of elusive magnetism in infinite-layer nickelates. Antiferromagnetic (AFM) order with small Ni moments is shown to be a vital competitor at low temperature. At stoichiometry, C-AFM order with ferromagnetic spin-alignment along the c-axis benefits from a conceivable coexistence with Kondo(-lattice) screening.
Who reads Doping-dependent Character and Possible Magnetic Ordering of <Mml:math Xmlns:mml="?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Lechermann, Frank (author)
- Publisher
- American Physical Society (APS)
- Published
- 2021
- Language
- EN
- Field
- Materials Science (Physical Sciences)