In this research, we aim to achieve sub-mK effective electron measurements to better analyze effects that occur at these very low temperatures. We do this by using a Faraday cage, through which we...Show moreIn this research, we aim to achieve sub-mK effective electron measurements to better analyze effects that occur at these very low temperatures. We do this by using a Faraday cage, through which we send a signal using sets of inductors. In order to test this, we define an effective frequency range for our signal by analyzing the theoretical electrical side effects that occur in our system. We perform multiple room temperature tests on our system within the defined frequency range, and work towards testing the effectiveness of our system at millikelvin temperatures as well.Show less
In this study we investigate if we can change the interfacial conductivity in LaAlO3/SrTiO3 heterostructures by adding some oxygen to the argon sputter gas. We vary the deposition parameters to...Show moreIn this study we investigate if we can change the interfacial conductivity in LaAlO3/SrTiO3 heterostructures by adding some oxygen to the argon sputter gas. We vary the deposition parameters to minimise the effect of the oxygen. We find that an increase in oxygen partial pressure increases the surface roughness. We also find that an increase in argon flow increases surface roughness. The optimised parameters, which minimise surface roughness, are in agreement with previous results of growing a conducting interface in LaAlO3/SrTiO3 by sputtering. However all our samples grown with oxygen are found to be insulating. A possible explanation for the effect of oxygen in the sputter gas is that the species oxidise before reaching the sample. We conclude that even a very small amount of oxygen in the sputter gas gives an insulating interface and that we can not make a conducting interface with oxygen in the sputter gas with the experimental set-up used.Show less
Using the notched wire mechanically controllable break junction technique charge transport of a single-molecule junction, containing the OPE3 molecule, is studied at room temperature. By deposition...Show moreUsing the notched wire mechanically controllable break junction technique charge transport of a single-molecule junction, containing the OPE3 molecule, is studied at room temperature. By deposition of molecules from solution between two gold leads we were able to determine the conductance of the OPE3 at (1.6±0.3)·10−4G0. The measurement speed of the LabVIEW control program for this experiment was improved by more than a factor of 7 compared to the previous version.Show less
The KM3NeT/ORCA experiment will use part of the detector which is currently being built in the Mediterranean Sea to determine the neutrino mass hierarchy by measuring the pattern of atmospheric...Show moreThe KM3NeT/ORCA experiment will use part of the detector which is currently being built in the Mediterranean Sea to determine the neutrino mass hierarchy by measuring the pattern of atmospheric neutrino oscillations. In this thesis, in addition to the neutrino oscillations in the Earth, the oscillations in the atmosphere have been included in the simulations and the impact of the atmosphere on the measurements has been evaluatedShow less