Leiden University Student Repository

Andringa, Arjo (2016)

Towards Metamaterial Superconductors: a Computer Simulation

Bachelor thesis | Natuurkunde (BSc)

In BCS superconductors the critical temperature is dependent on the phonon dispersion relation. We want to influence - and hopefully increase - the critical temperature by varying the phonon dispersion. This can be done by altering the lattice structure of a material on the nanoscale using nanofabrication. As a proof-of-principle project we simulate these phonon structures and see whether or not higher critical temperatures come out. In this project we tested the code for mistakes and physical inaccuracies. The code reproduced physical effects correctly, but artificial parameters which we need to put in because of numerics issues have some influence on the outcomes. However, we think this is not a big problem because in the end we calculate the ratio of critical temperatures between two systems. This means that all that is constant in the whole calculation will be divided out.

superconductivity

simulation

BCS superconductivity

lattice structure

Author

Andringa, Arjo

Faculty

Faculty of Science

Supervisors

Allan, Milan

ECTS Credits

3

Language

en