Efficient magnetic switching in a correlated spin glass
Sprache des Titels:
Englisch
Original Kurzfassung:
The interplay between spin-orbit interaction and magnetic order is one of the
most active research fields in condensed matter physics and drives the search
for materials with novel, and tunable, magnetic and spin properties. Here we
report on a variety of unique and unexpected observations in thin multiferroic
Ge1?xMnxTe films. The ferrimagnetic order parameter in this ferroelectric
semiconductor is found to switch direction under magnetostochastic reso-
nance with current pulses many orders of magnitude lower as for typical spin-
orbit torque systems. Upon a switching event, the magnetic order spreads
coherently and collectively over macroscopic distances through a correlated
spin-glass state. Utilizing these observations, we apply a novel methodology to
controllably harness this stochastic magnetization dynamics
Forschungs-