Preparation of superconducting thin films of infinite-layer nickelate Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$

TL;DR

This paper reports the successful synthesis of superconducting Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$ thin films using pulsed-laser deposition and chemical reduction, advancing the understanding of infinite-layer nickelate superconductors.

Contribution

It introduces a reliable method for growing superconducting Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$ films, addressing synthesis challenges in the field.

Findings

Successful growth of superconducting Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$ films

Use of pulsed-laser deposition and chemical reduction techniques

Details of the growth process provided

Abstract

The recent observation of superconductivity in infinite-layer nickelate Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$ has received considerable attention. Despite the many efforts to understand the superconductivity in infinite-layer nickelates, a consensus on the underlying mechanism for the superconductivity has yet to be reached, partly owing to the challenges with the material synthesis. Here, we report the successful growth of superconducting infinite-layer Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$ films by pulsed-laser deposition and soft chemical reduction. The details on growth process will be discussed.