Graphene, energy gap, single barrier, strain, tranmission, Goos-Hänchen shifts, group delay time
73.22.Pr, 72.80.Vp, 73.63.-b
72.80.Vp, 73.21.-b, 71.10.Pm, 03.65.Pm
73.63.-b, 73.23.-b, 72.80.Rj
73.22.-f, 73.63.Bd, 72.10.Bg, 72.90.+y