First-principles calculations of spin-dependent conductance of graphene flakes

First - Principles Calculations of Graphene Nanomesh

Submitted for the MAR11 Meeting of The American Physical Society First-Principles Calculations of Graphene Nanomesh WILLIAM OSWALD, ZHIGANG WU, Colorado School of Mines — Graphene has recently attracted intensive attentions owing to its remarkable structural and electronic properties and its significant potential for applications in electronic and optoelectronic devices for size miniaturization...

Fully spin-dependent transport of triangular graphene flakes

Carbon string structures: First-principles calculations of quantum conductance

Carbon forms various nanostructures based on the monatomic chains or strings which show transport properties of fundamental and technological interest. We have carried out first-principles quantum conductance calculations using optimized structures within density functional theory. We treated finite segments of carbon monatomic chain, metal-semiconductor heterostructure, and resonant tunneling ...

Calculations of spin-disorder resistivity from first principles

Calculations of spin-disorder resistivity from first principles" (2007).

Theoretical Studies of Spin-dependent Electronic Transport in Ferromagnetically Contacted Graphene Flakes

Based on a tight-binding model and a recursive Green's function technique, spin-depentent ballistic transport through tinny graphene sheets (flakes) is studied. The main interest is focussed on: electrical conductivity, giant magnetoresistance (GMR) and shot noise. It is shown that when graphene flakes are sandwiched between two ferromagnetic electrodes, the resulting GMR coefficient may be qui...