February 17, 2015

Insight into inner magnetic layers

(Feb.17, 2015)  Measurements at BESSY II have shown how spin filters forming within magnetic sandwiches influence tunnel magnetoresistance – results that can help in designing spintronic components.

Research teams from Paris, Madrid and Berlin have observed for the first time how magnetic domains mutually influence one another at interfaces of spintronic components. Using measurements taken at BESSY II, they could demonstrate that what are known as spin filters form between the outer ferromagnetic layers and the inner anti-ferromagnetic insulating layer, influencing tunnel magnetoresistance (TMR). In doing so, the teams enhanced our understanding of processes that are important for future TMR data storage devices and other spintronic components.