Topochemical Synthesis and Electronic Structure of High-Crystallinity Infinite-Layer Nickelates on an Orthorhombic Substrate.

ABSTRACT: Superconductivity in infinite-layer nickelates has stirred much research interest, to which questions regarding the nature of superconductivity remain elusive. A critical leap forward to address these intricate questions is through the growth of high-crystallinity infinite-layer nickelates, including the "parent" phase. Here, we report the synthesis of a high-quality thin-film nickelate, NdNiO₂. This is achieved through the growth of a perovskite precursor phase (NdNiO₃) of superior crystallinity on the NdGaO₃ substrate by off-axis RF magnetron sputtering and a low-temperature topochemical reduction using NaH. We observe a nonlinear Hall effect at low temperatures in this "non-doped" phase. We further study the electronic properties using advanced X-ray sca

SUBMITTER: Dong Z 

PROVIDER: S-EPMC11760177 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature