Leiden University Student Repository

Verheijden, Brin (2016)

Triplet Superconductivity in CrO2

Bachelor thesis | Natuurkunde (BSc)

In recent experiments on triplet superconductivity in full film CrO2-based triplet spin valves a surprisingly large proximity effect was shown under an out-of-plane magnet field by Singh et al. We aim to investigated this further with improved control over the current paths and magnetic non-collinearity in a new configuration. This is done by using more confined structures rather than a full film and by applying an in-plane field. We find that more control is needed over the magnetic non-collinearity required for triplet generation in in-plane experiments. A further improved design based on shape anisotropy is proposed to achieve this. Out-of-plane field measurements find a proximity effect coinciding in order of magnitude with the previously published results.

chromiumdioxide

superconductivity

triplet

ferromagnet

proximity

spin valve

critical temperature

e-beam lithography

Author

Verheijden, Brin

Faculty

Faculty of Science

Supervisors

Aarts, Jan

ECTS Credits

3

Language

en