Preparation of Superconducting Thin Films of Infinite-Layer Nickelate Nd$_{0.8}$Sr$_{0.2}$NiO$_{2}$
Qiang Gao1, Yuchen Zhao1,2, Xing-Jiang Zhou1,2,3,4*, and Zhihai Zhu1,2*
1National Lab for Superconductivity, Beijing National laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China 2School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China 3Beijing Academy of Quantum Information Sciences, Beijing 100193, China 4Songshan Lake Materials Laboratory, Dongguan 523808, China
Abstract：The recent observation of superconductivity in thin films of 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 the growth process are discussed.
2021, Vol. 38 
