Hysteresegebied

Hysteresegebied refers to the region on a hysteresis loop where a material exhibits a history-dependent response. This phenomenon is most commonly observed in magnetic materials, where the magnetization of the material does not solely depend on the instantaneous applied magnetic field but also on the material's past magnetic state. When the magnetic field is increased and then decreased, the magnetization follows a different path, creating a loop. The hysteresegebied is the area enclosed by this loop, representing the energy lost due to irreversible magnetic domain wall movements.

In electrical contexts, hysteresis can also be seen in components like Schmitt triggers, where the switching threshold for turning a device on is different from the threshold for turning it off. This prevents rapid switching oscillations when the input signal hovers around the threshold. The hysteresegebied in such circuits is the voltage range between these two distinct switching points. Understanding the hysteresegebied is crucial for designing and analyzing systems where the material or device's past behavior significantly influences its present state, impacting energy efficiency, stability, and performance. It quantifies the inherent "memory" effect within these systems.