Isotropic spin and inverse spin Hall effect in epitaxial (111)-oriented Pt/Co bilayers

• DOI: 10.48550/arxiv.2311.13400
• Publication Date: 2023-01-01
• Authors: Adrián Gudín; Alberto Anadón; Icíar Arnay; R. Guerrero; J. Julio Camarero; S. Petit; Paolo Perna; Juan‐Carlos Rojas...
• Keywords: Spin pumping; Spinplasmonics

The spin-to-charge current interconversion in bilayers composed of ferromagnetic and nonmagnetic layers with strong spin-orbit coupling has garnered considerable attention due to its exceptional potential advancing spintronics devices for data storage logic applications. Platinum (Pt) stands out as one the most effective materials generating spin current. While conversion efficiency is isotropic polycrystalline Pt samples, an ongoing debate persists regarding dependence on crystalline direction single samples. In this study, we aim comprehensively evaluate in-plane anisotropy spin-charge using array complementary Spin Hall inverse techniques both incoherent coherent excitation. Specifically, investigate epitaxial, (111)-oriented, Co/Pt low surface roughness, resulted from x-ray experiments. By varying thickness layer, gain insights into epitaxial highlight effects interfaces. Our results demonstrate behavior within limits our detection uncertainty. This finding significantly enhances understanding relevant systems paves way future research field.