Speaker
Jose Pablo Baltanas
Description
Magnetic semiconductors are hybrid systems in which magnetic
impurities couple indirectly via a bath of itinerant spin
carriers. The density of magnetic impurities can be
modulated along the growth direction of the semiconductor to
build periodic magnetic structures at the nanoscale, where
quantum effects are relevant. Here, we present a theory of
collective spin excitations in low-dimensional
magnetic-semiconductor superlattices with a view to
spin-wave band design for magnonics, and the possible
development of interfaces with (spin-) electronic systems.
