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We have studied the spin orbit-coupling from the Dirac equation, Understanding the properties of electronic states in quantum wires is a central issue in nanoscience.
In the ballistic region, with low electronic densities, electron-electron interactions are not very important, and wire conductance is determined by the transmission of electrons as independent particles and the effects of spin-orbit interaction (SOI) on the energy bands, a system of two dimensional equations with respect to the spinor components Ψ↑↓(t).
Belay Gemechu has obtained the 1st and 2nd degree at Addis Ababa University in Physics from 1997-2000 E.C and 2004-2008 E.C.
Respectively, now he is working as a teacher in Ethiopia.
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