Abstract

Abstract A magnetisation reversal associated to the formation of the so-called extended domain wall is investigated by means of magnetisation and magnetostriction measurements for the sputtered Fe/Tb(Fe 0.55 Co 0.45 ) 1.5 /Fe sandwich films with an individual TbFeCo-layer thickness of about 600 nm and Fe-layer thickness t Fe =30 and 60 nm. The obtained results are attributed to the contribution of the TbFeCo core as well as the interfacial domain wall. For comparison, magnetostriction data of {19 nm Terfecohan/11 nm Fe} multilayer is discussed.

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