2020/10/31 by Priyanka Manchanda, Pankaj Kumar, Pratibha Dev · 12 citations
Chemistry · Engineering · Materials Science · Physics and Astronomy · #2D Materials and Applications #Chalcogenide Semiconductor Thin Films #Chemistry #Condensed matter physics #Coupling (piping) #Crystallography #Magnetic moment #Magnetism #Materials science #Metallurgy #Physics #Quantum Dots Synthesis And Properties #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.103.144403
published in Physical review. B./Physical review. B 103(14) (American Physical Society)
openalex created_date 2020/11/09 · arxiv created 2021/03/28 · openalex publication_date 2021/04/02 · arxiv updated 2021/04/07 · openalex updated_date 2026/08/06
Platinum diselenide (PtSe2) is a recently-discovered extrinsic magnet, with its magnetism attributed to the presence of Pt vacancies. The host material to these defects itself displays interesting structural and electronic properties, some of which stem from an unusually strong interaction between its layers. To date, it is not clear how the unique intrinsic properties of PtSe2 will affect its induced magnetism. In this theoretical work, we show that the defect-induced magnetism in PtSe2 thin films is highly sensitive to: (i) defect density, (ii) strain, (iii) layer thickness, and (iv) substrate choice. These different factors dramatically modify all magnetic properties, including the magnitude of local moments, strength of the coupling, and even nature of the coupling between the moments. We further show that the strong interlayer interactions are key to understanding these effects. A better understanding of the various influences on magnetism can enable controllable tuning of the magnetic properties in Pt-based dichalcogenides, which can be used to design novel devices for magnetoelectric and magneto-optic applications.