(color online) (a) The conductance of two DWs separated by a distance L versus the DWs’ width δ for several different values of L. The other parameters are
m
=
0.6
m
0
, M0 = 2.6 meV, EF = 0.6 meV,
α
=
4
×
10
−
10
eV
·
cm
. (b) The conductance of two DWs separated by a distance L versus the Rashba spin–orbit coupling constant α for several different values of L. The other parameters are
m
=
0.6
m
0
, M0 = 2.6 meV, EF = 0.6 meV, δ = 2 nm.
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