Hu Young Jeong

Jan 19, 2025 | nature.com | Soumya Sarkar |Peter Newton |Yiru Zhu |Maheera Abdul Ghani |Hu Young Jeong |Yan Wang

AbstractGraphene-based spintronic devices require efficient spin injection, and dielectric tunnel barriers are typically used to facilitate spin injection. However, the direct growth of ultrathin dielectrics on two-dimensional surfaces is challenging and unreliable. Here we report spin injection in graphene lateral spin valves using ferromagnetic van der Waals contacts of indium and cobalt (In–Co), and without the deposition of dielectric tunnel barriers.