Crystallographic Engineering of Spin Transport in Antiferromagnetic NiO Thin Films.

ABSTRACT: In this work, we investigate how the crystallographic growth direction influences spin current transmission in antiferromagnetic (AF) NiO thin films. By manipulating epitaxial growth, we explored the spin transport characteristics in La_2/3Sr_1/3MnO₃/NiO/Pt heterostructures grown on top of (001)- and (111)-oriented SrTiO₃ substrates, varying the NiO barrier thickness (t_NiO). Spin currents were generated via spin pumping (SP), and detection was done by the inverse spin Hall effect (ISHE). X-ray diffraction and high-resolution electron microscopy techniques confirmed high-quality epitaxial films with nearly atomically sharp interfaces and similar dislocation distributions, irrespective of the growth direction. Nevertheless, epitaxially eng

SUBMITTER: Chen S 

PROVIDER: S-EPMC12445011 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature