Manipulation of a single magnetic atom using polarized single electron transport in a double quantum dot

摘要

We consider theoretically a magnetic impurity spin driven by polarizedelectrons tunneling through a double quantum dot system. Spin blockade effectand spin conservation in the system make the magnetic impurity sufficientlyinteract with each transferring electron. As a results, a single collectedelectron carries information about spin change of the magnetic impurity. Thescheme may develop all electrical manipulation of magnetic atoms by means ofsingle electrons, which is significant for the implementation of scalablelogical gates in information processing systems.