Dirac Particle for the Position Dependent Mass in the Generalized Asymmetric Woods-Saxon Potential

Figure 7

The effect of the potentials for position dependent mass on the transmission coefficient: the GAWSp for 𝑞=𝑞=1.25, 𝑎=𝑏=4, 𝐿=𝐿=3, 𝑝=𝑝=1, 𝑚₀=1, and 𝑚₁=0.01 (dot-dashed lines), the Woods-Saxon potential for 𝑞=𝑞=1, 𝐿=𝐿=3, 𝑝=𝑝=1, 𝑚₀=1, and 𝑚₁=0.01 (solid lines), the cusp potential for 𝑞=𝑞→0, 𝑎=𝑏=4, 𝐿=𝐿=0, 𝑝=𝑝=1, 𝑚₀=1, and 𝑚₁=0.01 (dash-double-dotted lines), and the Hulthen potential for 𝑞=𝑞=0.75, 𝑎=𝑏=4, 𝐿=𝐿=0, 𝑝=𝑝=1, 𝑚₀=1, and 𝑚₁=0.01 (dashed lines). In (a) and (b), parameters are 𝑉₀=3 and 𝐸=2, respectively.

(a)

(b)