The pairing symmetry of the superconducting material Strontium Ruthenate (Sr2RuO4), despite much research, has not been established. The experimental evidence until now points to a pairing symmetry...Show moreThe pairing symmetry of the superconducting material Strontium Ruthenate (Sr2RuO4), despite much research, has not been established. The experimental evidence until now points to a pairing symmetry compatible with the existence of superconducting domains. The boundaries of these domains are expected to act as Josephson junctions. Although bulk samples contain a random and non-predictable domain structure, mesoscopic samples feature a controllable configuration of the domains. The behavior of singly or doubly presupposed connected domain boundary is investigated by the electronic transport properties of mesoscopic samples of Sr2RuO4, in which the domain walls are pinned to the geometry. The characteristic critical current oscillations and Shapiro steps of the Josephson junction are established, as well as current switchable states due to in-plane (IP) fields.Show less
In an effort to control triplet superconductivity in ferromagnetic disks with RF signals a setup was built to support high frequency experiments in a vector magnet cryostat. This setup included the...Show moreIn an effort to control triplet superconductivity in ferromagnetic disks with RF signals a setup was built to support high frequency experiments in a vector magnet cryostat. This setup included the fabrication of on-substrate coplanar waveguides which can be used to couple RF signals to existing devices by fabricating the devices on top of the waveguide. Another component is the addition of a shielding box which can both block low frequency resonances and can make connecting to the on-substrate waveguides more convenient and reliable. To test the setup, ferromagnetic resonance experiments were done on permalloy thin films using a vector network analyser in addition to the vector magnet.Show less
