Final Year Project

In order to receive the MEng qualification, all students are required to complete a project in their final year. This is a group project with 3 students and a supervising faculty member.

Aim: Develop ultra-highly sensitive microwave cavity resonators for Spintronic applications.

Background

Spintronics is all about controlling electron spins in efficient ways and has applications such as data storage. In this project, we will use a resonant cavity to apply GHz magnetic fields to samples. These high-speed AC fields can cause dynamic motion of spins (ferromagnetic resonance) and our goal is to be able to accurately detect these motions.

Deliverables

  1. Design a microwave resonator based on existing designs in order to optimise characteristics such as quality factor and fill factor.
  2. Characterise the new cavity in the lab to measure parameters such as q-factor and resonant frequency, using appropriate experimental techniques and accounting for discrepancies caused by external conditions.
  3. Measure spin dynamics in the cavity by using its magnetic field resonance to sense the power dissipated for precessing the spins. Use the electric field resonance to excite and detect E-field induced ferromagnetic resonance.

Please click on the links below to view my final presentation and thesis, which contain more information.

Project Presentation

Thesis

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