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Treball de fi de grau

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cc-by-nc-nd (c) Soler Oliver, Gisela, 2026
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/231479

Interlayer exchange coupling in Ni/Al/Py heterostructures

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This study investigates the magnetic behavior of Py/Al/Ni heterostructures to evaluate the effect of the Al spacer thickness on the interlayer coupling. Hysteresis loops for sample series with 5 nm and 10 nm Py layers were measured using Magneto-Optic Kerr Effect (MOKE). The results indicate that the direct contact samples appear to be strongly coupled and switch collectively. The introduction of Al attenuates this interaction, enabling the observation of independent switching and stable antiparallel states in specific configurations. Furthermore, the increase of Py thickness has been seen to modify the interlayer coupling. However, the intrinsic magnetic anisotropy of the Py layer complicates this characterization by masking the underlying magnetic behavior. Our results highlight the importance of structural control for the development of magnetic memories such as MRAM.

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Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2026, Tutor: Regina Galceran

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SOLER OLIVER, Gisela. Interlayer exchange coupling in Ni/Al/Py heterostructures. [consulted: 3 of October of 2026]. Available at: https://hdl.handle.net/2445/231479

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