2025/12/01 by Emanuele Longo, Pinaka Pani Tummala, Longo, Emanuele +13
Materials Science · Physics and Astronomy · #2D Materials and Applications #Chemical and Physical Properties of Materials #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Topological Materials and Phenomena
paper · pdf · doi:10.48550/arxiv.2512.01743
openalex publication_date 2025/12/01 · openalex created_date 2025/12/03 · openalex updated_date 2026/07/28
Transition metal dichalcogenides (TMDs) have emerged as a promising class of materials for spintronics, with the aim of promoting efficient spin-charge conversion (SCC) in TMD/ferromagnet (FM)-based devices. The MoTe2 semimetal with distorted orthorhombic crystal structure in the 1T' phase has gathered particular attention due to its high spin-orbit coupling and reconfigurability as a type-II Weyl semimetal close to room temperature. Here, we report on the role of chemically grown 1T'-MoTe2 thin films in inducing SCC in 1T'-MoTe2/FM heterostructures as measured at room temperature. Ferromagnetic resonance (FMR) and electrically detected spin-pumping FMR measurements performed on 1T'-MoTe2/Co/Au and 1T'-MoTe2/Au/Co/Au heterostructures reveal a spin-mixing conductance value of up to ∼1.6 × 1020~\mathrmm-2 and a spin Hall angle of 1.7%. These findings position MoTe2 thin films as a competitive spin-charge conversion option compared to other functional materials (e.g., heavy metals, topological insulators), highlighting their potential for future applications in spintronic devices.