| Abstract Scope |
We explore ultra-conducting behavior in metal composites with graphene and graphene-like additives using ab initio density functional theory. As we have seen in previous work, the judicious addition of graphene leads to an enhanced density of states at the Fermi level, which is probably the origin of the observed conduction improvement in copper-graphene composites [1]. We report the mechanical and electronic properties of other carbon composite systems involving aluminum, silver, and gold. We also explore the effect of variants of graphene, such as amorphous graphene, and graphene with impurities including oxygen and nitrogen to better understand the electrical transport in such composites. To visualize the conduction, we employed the Space Projected Conductivity (SPC) [2].
References:
1. K. Subedi, K. Nepal, C. Ugwumadu, K. Kappagantula, and D. A. Drabold, Applied Physics Letters 122 031903 (2023).
2. K. Subedi, K. Prasai, and D. A. Drabold, Physica Status Solidi B 2000438 (2020). |