Magnetization reversal in patterned magnetic multilayers

Patterned “antidot” magnetic multilayers, i.e., hole arrays in continuous films (inset), are attractive for high density data storage. Fe K edge XMCD hysteresis loops (circles) taken on a Gd/Fe multilayer antidot array are shown. XMCD measures the projection of the magnetization along the photon direction so vectorial information is obtained by rotating the sample/magnet assembly with respect to the incident photon beam direction. Micromagnetic simulations (solid lines) yield insight into the microscopic magnetization configurations [Applied Physics Letters 81, 4997 (2002)]

Local Contact: DongReol Lee ( drlee@aps.anl.gov)


Posted by: Becky Gagnon ( gagnon@aps.anl.gov)
Content by: Jonathan Lang ( lang@aps.anl.gov)