Speaker
Almas Sadreev
Description
In this set of lectures basic concepts such as Rashba and
Dresselhaus spin-orbit interactions will be described. The
example of In doped GaAs 2DEG structures will be
discussed, how to solve the problem of electron transmission
in electronic devices based on these structures,
spin-polarized transmission in curvilinear wires and spin
evolution for the process of transmission, and finally
about ac effects. In a more detailed part of the lectures we
consider electron transmission in 1d quantum wire with the
Rashba spin-orbit interaction(SOI). The wire is subjected by
dc and ac potentials of finger gate that results in local
time-periodic Rashba SOI. We calculate the conductance of
the 1d wire as dependent on incident energy, frequency of ac
potential and a value of dc potential. A conductance, spin
polarization and spin flip transmission are calculated as
dependent on external constant magnetic field, the ac
frequency and energy of incident electrons which show an
analog of electron spin resonance for dynamical Rashba SOI.
