ENERGY MINIGAPS IN THE QUANTUM WIRES WITH LATERAL SURFACE-STRUCTURES

Energy minigaps caused by lateral surface structures in quasi-one-dime nsional GaAs/AlAs quantum wires are calculated with the variational an d degenerate-perturbational approaches. By a coordinate transformation , the structured interfaces of wires are transformed into planar ones so that the boundary conditions of the electronic wave functions can b e satisfied exactly on the interfaces. The dependence of energy miniga ps on lateral surface structures are discussed.