2 papers
cond-mat.mtrl-sci2008
Edge effects in Bilayer Graphene Nanoribbons
Matheus P. Lima, A. Fazzio, Antônio J. R. da Silva
We show that the ground state of zigzag bilayer graphene nanoribbons is non-magnetic. It also possesses a finite gap, which has a non-monotonic dependence with the width as a conse…
cond-mat.mtrl-sci2006
Hf defects in HfO2/Si
W. L. Scopel, Antonio J. R. da Silva, A. Fazzio
We investigate the possibility that Hf defects exist in the Si channel of HfO2 Si-based metal-oxide-semiconductor devices. We have studied, using ab initio Density Functional Theor…