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Title: Low Valence Nickelates: Launching the Nickel Age of Superconductivity

Journal Article · · Frontiers in Physics
 [1];  [2];  [3];  [4];  [5]
  1. Arizona State Univ., Tempe, AZ (United States)
  2. Korea Univ., Seoul, (Korea, Republic of)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Universidade de Santiago de Compostela (Spain)
  5. Univ. of California, Davis, CA (United States)

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 Each viewpoint has its merits, and each has its limitations, suggesting that such a simple picture must be superseded by a more holistic comparison of the two classes.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.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Research Foundation (NRF) of Korea; National Science Foundation (NSF); Spanish Ministerio de Economia y Competitividad (MINECO); USDOE Office of Science, Office of Basic Energy Sciences. Materials Sciences and Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1844249
Journal Information:
Frontiers in Physics, Journal Name: Frontiers in Physics Vol. 9; ISSN 2296-424X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

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