Abstract
Half-metallic Co-based Heusler compounds are attracting attention due to their anticipated use as high-performance materials for spintronics applications, such as spin-source or spin-detector. In order to use these materials in applications, their structural and magnetic properties must be well understood. The important phenomena in those materials are, amongst others, exchange and spin–orbit coupling, the latter one giving rise to effect such as magnetic anisotropy and magneto-optical Kerr effect. In this chapter, we present our investigations of magnetic exchange stiffness, magnetic anisotropy, magnetization reversal, and magneto-optical Kerr effect in Co-based Heusler compound thin films. Furthermore, we have also investigated the modification of the compounds under He+ and Ga+ ion beam irradiation with the aim of improving and tailoring structural properties.
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