Controlling Noncollinear Ferromagnetism in van der Waals Metal-Organic Magnets.

ABSTRACT: Van der Waals (vdW) magnets both allow exploration of fundamental 2D physics and offer a route toward exploiting magnetism in next generation information technology, but vdW magnets with complex, noncollinear spin textures are currently rare. We report here the syntheses, crystal structures, magnetic properties and magnetic ground states of four bulk vdW metal-organic magnets (MOMs): FeCl₂(pym), FeCl₂(btd), NiCl₂(pym), and NiCl₂(btd), pym = pyrimidine and btd = 2,1,3-benzothiadiazole. Using a combination of neutron diffraction and bulk magnetometry we show that these materials are noncollinear magnets. Although only NiCl₂(btd) has a ferromagnetic ground state, we demonstrate that low-field hysteretic metamagnetic transitions produce st

SUBMITTER: Pitcairn J 

PROVIDER: S-EPMC11258693 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature