Study of Magnetic Structure of Multilayers: Observing non-collinear coupling between ferromagnetic layers in thin films - Tapa blanda

Sinopsis

This work has been motivated by the strong technological interest in spin-valve structures exhibiting the effect of giant magnetoresistance. This phenomenon has been widely utilized in a new generation of magnetoresistive memory, reading heads for magnetic disk drives, and field sensors. The research has showed that the interfacial roughness strongly depends on the conditions of sample preparation. It also revealed a non-collinear coupling of magnetization between the ferromagnetic layers of the spin-valve samples. The signs of the coupling constants have been determined from the neutron reflectometry data using minimum energy model for the relative orientations of magnetization. In addition to the main topic of the book, the last chapter is dedicated to study of ultracold neutron (UCN) storage anomaly. The experiments have indicated a possibility of UCNs temporarily adhering to the inner coating of the trap and being released later back to the storage container.

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