Effective Mass
Use the
Effective Mass
node to set the effective mass of the particle. The default is
0.067*me_const
for electron-like particles and
0.45*me_const
for hole-like particles.
It is common for electrons or holes to have different effective masses in different regions of a heterostructure. This can be easily specified by using multiple
Effective Mass
nodes. Later nodes overrides earlier nodes in the Model Builder tree.