[Soft-matter] Soft Matter and Stat Phys Seminar 19 Mar 2021

[Maciej Lisicki]

Dear Soft Matter Colleagues and Friends,

On Friday 19 March 2021 at 9:30 AM we are hosting a seminar during which

Łukasz Gładczuk (University of Oxford & Diamond Light Source)

will give a talk

Likelihood ratio testing with applications to MgO-based magnetic tunnel junctions experimental data

Abstract
Heterostructures composed of ferromagnetic layers that are mutually interacting through a non-magnetic spacer are at the core of magnetic sensor and memory devices. Such devices can exhibit different types of coupling between magnetic layers, such as: exchange coupling and spin-current mediated coupling. We used the technique of x-ray detected ferromagnetic resonance (XFMR) to study the dynamics of a Co/MgO/Permalloy magnetic tunnel junction (MTJ). The experimental results were quantitatively compared to the Landau-Lifshitz-Gilbert-Slonczewski model where an in-depth statistical analysis based on a likelihood ratio test was employed to determine the presence of spin-current mediated coupling between the two magnetic layers.

Phys. Rev. B 103 064416

The seminar will be conducted on Zoom
https://us02web.zoom.us/j/82784273907 <https://us02web.zoom.us/j/82784273907>
and will begin at 9:30AM. 

Maria Ekiel-Jeżewska
Maciej Lisicki
Marek Napiórkowski
Piotr Szymczak




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