Magnetic materials are natural negative permeability materials, so much sought after by electromagnetic researchers. However, magnetic resonances in natural continuous magnetic materials are limited to low GHz frequency range.
This computational PhD project aims at uncovering the potential of magnetic nano-structures for designing magnetic permeability with extreme values at frequencies of several 100 GHz. You will need to implement distributed micromagnetic simulations on the Exeter supercomputer, and then to apply the developed tools to 3D micromagnetic simulations of micron-scale magnetic structures with nano-scale features. In particular, you will study high frequency magnetic phenomena in isolated elements with nanoscale roughness, arrays of those, and extended magnonic crystals with nano-scale periods. The challenge is to guide the experimental research towards magnonic metamaterials with new exotic properties at elevated frequencies. You will use an original scheme to modify the software for massively parallel truly scalable simulations of large systems of interacting magnetic objects.
This PhD project will offer rich additional opportunities for extended scientific collaborations with and visits to leading international experts in magnonics, within an academic exchange programme NoWaPhen funded by EU (FP7) to run through to 2014.