Abstract by Mason Parkes
Physics and Astronomy
Effects of field cooling on Magnetic Domain Memory
When CoPd/[IrMn] thin films are cooled under an external magnetic field of certain magnitude, they can "remember" their magnetic domain patterns after they are cycled through a magnetization loop. The extent of this magnetic domain memory (MDM) depends on the strength of the field applied during the cooling, and is measured by cross-correlating coherent x-ray resonant magnetic scattering patterns collected with synchrotron radiation. To determine the MDM, we compare scattering images collected at the same field value after cycling through a magnetic loop multiple times. The process relies on smoothing and integrating parameters that allow us to create maps that show the extent of MDM at different field cooling values. My role in the research is to create these correlation maps and to see to what extent changing correlation parameters impacts the maps we generate.