Low Valence Nickelates: Launching the Nickel Age of Superconductivity

Antia S. Botana, Kwan Woo Lee, Michael R. Norman, Victor Pardo, Warren E. Pickett

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations

Abstract

The discovery of superconductivity in thin films (∼10 nm) of infinite-layer hole-doped NdNiO2 has invigorated the field of high temperature superconductivity research, reviving the debate over contrasting views that nickelates that are isostructural with cuprates are either 1) sisters of the high temperature superconductors, or 2) that differences between nickel and copper at equal band filling should be the focus of attention. Each viewpoint has its merits, and each has its limitations, suggesting that such a simple picture must be superseded by a more holistic comparison of the two classes. Several recent studies have begun this generalization, raising a number of questions without suggesting any consensus. In this paper, we organize the findings of the electronic structures of n-layered NiO2 materials (n = 1 to ∞) to outline (ir)regularities and to make comparisons with cuprates, with the hope that important directions of future research will emerge.

Original languageEnglish (US)
Article number813532
JournalFrontiers in Physics
Volume9
DOIs
StatePublished - Feb 2 2022

Keywords

  • cuprates electronic structure
  • electronic structure ab-initio calculations
  • magnetism
  • nickelates
  • superconductivity

ASJC Scopus subject areas

  • Biophysics
  • Materials Science (miscellaneous)
  • Mathematical Physics
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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