Science Daily September 21, 2023 One of the hallmarks of Magnetic Weyl semimetals (mWSMs) is the emergence of large intrinsic anomalous Hall effect. On heating the mWSM above its Curie temperature, the magnetism vanishes while exchange-split Weyl point pairs collapse into doubly degenerate gapped Dirac states. Researchers in Japan found potential of these Dirac nodes in paramagnetic state for efficient spin current generation at room temperature via the spin Hall effect. They introduced Ni and In to separately substitute Co and Sn in a prototypal mWSMCo3Sn2S2 shandite film and tuned the Fermi level. Composition dependence of spin Hall conductivity for […]
Tag Archives: Ferromagnetic materials
Unlocking magnetic properties for future faster, low energy spintronics
Nanowerk July 8, 2019 While studying Fe3GeTe2 (FGT) which has promising ferromagnetic properties for spintronic devices, an international team of researchers (Australia, China, South Korea, Russia) discovered magnetoresistance in devices with ferromagnetic van-der-Waals (vdW) materials. They attributed this property to a spin momentum locking induced spin-polarized current at the graphite/FGT interface. The research reveals that ferromagnetic heterostructures assembled from vdW materials can exhibit substantially different properties to those exhibited by similar heterostructures grown in vacuum. Hence, it highlights the potential for new physics and new spintronic applications to be discovered using vdW heterostructures…read more. Open Access TECHNICAL ARTICLE