Abstract
Two-dimensional (2D) transition metal dichalcogenides with van der Waals gaps have attracted much attention due to their peculiarly distinctive physical properties from their bulk counterparts. Among them, vanadium diselenide (VSe 2 ) has been considered to be a promising candidate for future spintronic devices, as room temperature ferromagnetism was reported recently. However, detailed crystallography and properties of VSe 2 nanosheets have been less explored. Here, we report the atomistic real-space observation of the van der Waals layered structure of VSe 2 for the first time. Furthermore, simply by controlling the carrier gas flow rate, a morphological variation of the surface area and thickness of VSe 2 nanosheets was observed. The room temperature ferromagnetic feature of single VSe 2 nanosheets was also revealed by magnetic force microscopy measurements. Our findings will play a significant role in the research of intrinsic 2D ferromagnetic materials.
Original language | English |
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Pages (from-to) | 431-436 |
Number of pages | 6 |
Journal | Nanoscale |
Volume | 11 |
Issue number | 2 |
DOIs | |
State | Published - 14 Jan 2019 |
Bibliographical note
Publisher Copyright:© 2019 The Royal Society of Chemistry.