investigation of the magnetic properties of β-boron doped with carbon

Magnetism: Another Idiosyncrasy of Boron?

“…Their conclusion is that the magnetism is intrinsic and results from holes trapped on very shallow trapping levels just above the valence band. In another study [14] on crystalline β ‐Boron they report that two ESR signals having g =2.00 and g =4.28 were observed, the latter being ascribed to Fe 3+ impurities. We did not observe a signal corresponding to g =4.28.…”

“…We did not observe a signal corresponding to g = 4.28. The role of Carbon doping is unclear but it is suggested that Carbon atoms could act as donors substituting Boron atoms in the lattice, [14] even though no clear dependence between the magnetism and the Carbon content could be found.…”

“…Boron is diamagnetic in its bulk form but is ubiquitous in the NdFeB magnets found nowadays in smartphones, generators and hard drives. [7] Calculations predict that 2-D boron, "borophene", could become superconducting below 20 K. [8,9] Even though there are numerous studies reporting the influence of boron doping/alloying on the magnetic properties of a variety of materials, [10] there seems to be very few dealing with the magnetic properties of pure Boron, [11,12,13,14] in particular we failed to find a recent one or one dealing with nanoparticles.…”