Growth and magnetic properties of two-dimensional vanadium-doped Cr2S3 nanosheets

Two-dimensional magnetic materials are emerging materials developed in recent years and have attracted much attention for their unique magnetic properties and structural features in single -layer or few layers of atomic thickness. Among them, ferromagnetic materials have a wide range of applications such as in information memory and processing. Therefore the current research mainly focuses on enriching the twodimensional ferromagnetic database and developing modification strategies for magnetic modulation. In this work, two-dimensional vanadium -doped Cr2S3 nanosheets successfully grow on mica substrates by atmospheric pressure chemical vapour deposition. The thickness and size of the nanosheet can be effectively regulated by changing the temperature and mass of vanadium source VCl3 powder, with the temperature of 765 celcius and the mass of 0.010 g as the most appropriate conditions for the growth of nanosheets. The nanosheets are also characterised by optical microscopy, atomic force microscopy, Raman spectroscopy, scanning electron microscopy, X-ray energy spectroscopy, and X-ray photoelectron spectroscopy, and the nanosheet is regular in shape, with flat surface and controllable thickness, and the high -quality vanadium -doped Cr2S3 nanosheet is prepared. Meanwhile, the magnetic characterisations of the doped samples show that the Curie transition temperatures of the vanadium doped samples change to 105 K, and the maximum magnetic moment point of 75 K in the M -T curve disappears after V doping, and from subferromagnetic material to ferromagnetic material, and the coercivity in the M -H curve also increases significantly, which proves that the vanadium doping can effectively regulate the magnetic properties of Cr2S3 nanosheets. These results are expected to advance the vanadium -doped Cr2S3 materials toward practical applications and become one of the ideal candidate materials for the next -generation spintronic applications.