Carrier-mediated long-range ferromagnetism in electron-doped Fe-C4and Fe-N4incorporated graphene

Limits of slow sound propagation and transparency in lossy, locally resonant periodic structures

“…Our study contributes to the field of locally resonant acoustic metamaterials [16] which derive their unique properties, such as negative effective mass density [17] and negative bulk modulus [18,19], from local resonators contained within each unit cell of engineered structures. Due to these effective parameters, a plethora of fascinating phenomena have been proposed in recent years, including negative refraction, super-absorbing sound materials, acoustic focusing, and cloaking (see [20] and references therein).…”

Manipulating intrinsic behaviors of graphene by substituting alkaline earth metal atoms in its structure

“…Metal adatoms on graphene, silicene and nanotubes has been widely analyzed for ferromagnetism behaviors by rst-principles calculation. [13][14][15][16] Recently, there are two main approaches widely utilized for substituting metal adatoms into graphene. One approach is to adsorb metal adatoms on graphene surface 17 and the other is to incorporate foreign metal atoms into graphene vacancies, namely single vacancy (SV) or di-vacancy (DV).…”

Induce magnetism into silicene by embedding transition-metal atoms

“…34 For the Fe embedded into graphene at the DV site, when the four C atoms surrounding the DV were substituted by N, a stable Fe-N4 structure was formed, which has been observed in experiments 40 and induces a larger magnetic moment. 41 Thus, in order to further modulate the magnetic states of TM-silicene, we considered the doping effect of C/ N for TM-embedded silicene. The SV and DV holes in silicene can be chemically modified by various species like C or N atoms.…”