# Kris's Research Notes

## February 22, 2012

### How Ga-As and Ga-Ga bonds affect Roughness and Wicking. Also, nanowires.

Filed under: GaAs Simulations — Kris Reyes @ 1:10 am

Recall previously we had considered increasing the Ga-As bond strength $\gamma_{GA}$ and decreasing the Ga-Ga bond strength $\gamma_{GG}$. Doing so would increase the difference in the local energies between a solid, crystalline and liquid neighborhoods. With our old energies ($\gamma_{GA} = 0.5$eV, $\gamma_{GG} = 0.3$eV), the difference in local energies between solid and liquid neighborhoods is = 0.8 eV. Setting $\gamma_{GA} = 0.7$eV and $\gamma_{GG} = 0.24$eV, this difference becomes 1.84 eV. In this note, we examine the effect of changing these parameters on simulation results.