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7 6 5 4 3 2 1 0 -1 -2 -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 Energy / (J x 10    ) 13 α misalignment energy in-plane strain energy total energy
b:   3.61   /Å
d:   3.61   /Å

The value of the ratio b/d is 1.00

G:   46.2    GPa
v:   0.3   
w/b:   0.789   

Select a material to see the plot:

The Peierls energy is the magnitude of the energy at the maximum (i.e. where α = ∓ 0.25). So now the Peierls energy is 0.88 x 10 -13 J m-1