Molecular Dynamic Simulation of Zigzag Silicon Carbide Nanoribbon

Selective scattering in a zigzag graphene nanoribbon

Electric transport of a zigzag graphene nanoribbon through a step-like potential or a potential barrier is studied by using the recursive Green’s function method. The results for a step-like potential show that scattering processes in a zigzag graphene nanoribbon obey a following selection rule: when the number of zigzag chains N is even, electrons in the band m are only scattered into the band...

Atomistic simulation of rapid compression of fractured silicon carbide

Deformation mechanisms of a crack in silicon carbide under high-rate compression are investigated by molecular dynamics simulation. The penny-shaped crack is in tension throughout the simulation while a variable compression is applied in an in-plane direction. Two different mechanisms of crack-tip response are observed: (1) At low tension, a disordered band forms from the crack surface in the d...

Simulation and Characterization of Silicon Carbide Power Bipolar Junction Transistors

Electron spin magnetism of zigzag graphene nanoribbon edge states

Theoretical Study of a Zigzag Graphene Nanoribbon Field Effect Transistor

Graphene nanoribbons with zigzag edges show metallic behavior and are thus considered not appropriate for transistor applications. However, we show that by engineering line defects and using positive substrate impurities one can obtain a suitable effective transport gap at least for analog applications. The transfer and output characteristics of these structures are investigated employing quant...