PhD Mid-term Seminar Series: Ultrasensitive Magneto-Optical Ellipsometry for depth-resolved Magnetometry

Title: PhD Mid-term Seminar Series: Ultrasensitive Magneto-Optical Ellipsometry for depth-resolved Magnetometry
Speaker: Carmen Martin (pre-doctoral researcher, Nanomagnetism group, nanoGUNE)
Place: nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
Date: September 25, 2023, 11:00

A major challenge in nano-scale magnetism and spintronics today revolves around the experimental confirmation and precise understanding of spatial magnetization configurations or spin structures along the depth of the structures in multilayer materials. This is crucially important because very relevant fundamental phenomena and cutting-edge devices rely heavily on the presence of these spin structures. In this regard, my PhD project envisions the development of a Magneto-Optical Ellipsometry based tool and methodology that allows for depth resolved magnetometry and the application of this novel method to relevant scientific questions related to non-uniform magnetization states in magnetic materials. Thougout this talk we will see the steps accomplished towards this general objective, including the experimental verification of the reflexion matrix description, the detection of non-collinear magnetic states and the layer-resolved vector magnetometry.