The future development of functional magnetic devices based on ultrafast optical manipulation of spins requires an understanding of the depth-dependent spin dynamics across the interfaces of complex magnetic heterostructures. A novel technique to obtain such an “in depth” and time-resolved view on the magnetization has now been demonstrated at the Max Born Institute in Berlin, employing broadband femtosecond soft X-ray pulses to study the transient evolution of magnetization depth profiles within a magnetic thin film system.
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Source: Phys.org