A Superconducting Praseodymium Nickelate with Infinite Layer Structure

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Motoki Osada
  • Bai Yang Wang
  • Berit H. Goodge
  • Kyuho Lee
  • Hyeok Yoon
  • Keita Sakuma
  • Masashi Miura
  • Lena F. Kourkoutis
  • Harold Y. Hwang

Detail(s)

Original languageEnglish
Pages (from-to)5735-5740
Journal / PublicationNano Letters
Volume20
Issue number8
Online published23 Jun 2020
Publication statusPublished - 12 Aug 2020
Externally publishedYes

Abstract

A variety of nickel oxide compounds have long been studied for their manifestation of various correlated electron phenomena. Recently, superconductivity was observed in nanoscale infinite layer nickelate thin films of Nd0.8Sr0.2NiO2, epitaxially stabilized on SrTiO3 substrates via topotactic reduction from the perovskite precursor phase. Here, we present the synthesis and properties of PrNiO2 thin films on SrTiO3. Upon doping in Pr0.8Sr0.2NiO2, we observe superconductivity with a transition temperature of 7-12 K and robust critical current density at 2 K of 334 kA/cm2. These findings indicate that superconductivity in the infinite layer nickelates is relatively insensitive to the details of the rare earth 4f configuration. Furthermore, they motivate the exploration of a broader family of compounds based on two-dimensional NiO2 planes, which will enable systematic investigation of the superconducting and normal state properties and their underlying mechanisms.

Research Area(s)

  • infinite layer, Nickelate, PrNiO2, superconductivity, thin film

Citation Format(s)

A Superconducting Praseodymium Nickelate with Infinite Layer Structure. / Osada, Motoki; Wang, Bai Yang; Goodge, Berit H.; Lee, Kyuho; Yoon, Hyeok; Sakuma, Keita; Li, Danfeng; Miura, Masashi; Kourkoutis, Lena F.; Hwang, Harold Y.

In: Nano Letters, Vol. 20, No. 8, 12.08.2020, p. 5735-5740.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review