4 citations · 12 across the 11 of their papers we have counts for
11 papers
A Generally Covariant Theory of Quantized Dirac Field in de Sitter Spacetime
Sze-Shiang Feng, Mogus Mochena
As a sequel to our previous work\cite{Feng2020}, we propose in this paper a quantization scheme for Dirac field in de Sitter spacetime. Our scheme is covariant under both general t…
First principles calculations of Structure and electrostatic properties of non ligated CdSe nanoclusters
Anteneh G Tefera, Mogus D Mochena, Elijah Johnson +1
Structural and charge relaxation of nanoclusters of CdSe of diameter 1-2 nm are studied with first principle calculations. The relaxations cause significant distortions of smaller…
Doping icosahedral Fe with 3d transition elements
Anteneh G. Tefera, Mogus D. Mochena
Our density functional theory calculations for Fe_{13-n}M_{n} for M = Sc, Ti, V, Cr, Mn, Co, Ni, and Cu up to n = 4 show that the icosahedral symmetry of Fe13, albeit minor changes…
Nucleation and cap formation on symmetric metal nanocatalysts: A first step towards chirality-controlled single-walled carbon nanotube growth
Anteneh G Tefera, Mogus D Mochena
Symmetric minima of surface potential energy of a nanocatalyst act as nucleation sites for chirally selective initial growth of single walled carbon tubes at low temperatures. The…
Graphene in external fields
Sze-Shiang feng, Mogus Mochena
A general discussion of graphene in external electromagnetic field is provided. In general, the formulation is not Lorentz invariant because of Zeeman energy. But it can be restore…
Ferromagnetism of GaMnAs and Weiss theory of Curie temperature in the coherent potential approximation
Sze-Shiang Feng, Mogus Mochena
The zinc-blende GaAs-based III-V diluted magnetic semiconductors (DMS)are studied in the coherent potential approximation(CPA). In this work, we use the exact Hilbert transformatio…