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 ∼1.6×1020m−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.
@article{arxiv.2512.01743,
title = {Transition Metal Dichalcogenide 1T$'$-MoTe$_2$ Nanoscale Films as Spin Pumping Platforms},
author = {Emanuele Longo and Pinakapani Tummala and M. Belli and Alessio Lamperti and Christian Martella and Alessandro Molle and Marco Fanciulli and Roberto Mantovan},
journal= {arXiv preprint arXiv:2512.01743},
year = {2025}
}