Transient magnetic tunneling mediated by a molecular bridge
The simplest molecular bridge consists of single-level molecular island linked to two massive leads by independent tunneling junctions. We investigate the transient behaviour just after switching the leads on the bridge. In the figure: an example of the evolution of the transient local magnetization
of the bridge island.
The process
was started by suddenly attaching the empty level to the
left lead at zero time.The transients are shown for a range of moderate
Hubbard U values. Note the sudden jump in magnetization at critical value of U.
