Hybrid 0D/2D Metamaterials with Room-Temperature Ferromagnetism

The recent discovery of long-range magnetic ordering in two-dimensional (2D) van der Waals solids [1], [2] has reignited the research efforts in 2D materials due to its potential for applications in spintronics and quantum technology. Most practical applications will require 2D materials displaying magnetism at room temperature. [3] –[8] 2D semiconductor transition metal dichalcogenides (TMDs), like the MX
2
family [where M=Mo, W, Re and X=S, se or Te], containing nonmagnetic elements are, in general, nonmagnetic. Nevertheless, diverse approaches have been explored to induce magnetism in these 2D-TMDs; for instance, introducing vacancies, [9] magnetic adatoms, [10] Substitutional doping, [5] –[8], [11] functionalization [10] and edge effects. [12] –[14] substitutional doping in TMDs, with different magnetic and non-magnetic atoms such as V, Co, Cr and Fe, has also been proven to induce composition dependent room-temperature magnetism. [5] –[8], [15] –[18]