The persistence of magnetization after an external magnetic field is removed is this effect's namesake "loop."
A model of this phenomenon that plots relays by alpha and beta thresholds scaled by a factor mu is named for Preisach. The creation of a system of a certain type of wire exhibiting this phenomenon results in the Wiegand effect, and it can be measured by plotting magnetic field versus Kerr rotation. Motion in domain walls associated with this leads to the Barkhausen effect. The persistence of magnetization after an external magnetic field is removed is this effect's namesake "loop." For 10 points, name this phenomenon in which a material exhibits "memory" by lagging in response to changes.
A model of this phenomenon that plots relays by alpha and beta thresholds scaled by a factor mu is named for Preisach.
hysteresis