116 citations · 364 across the 9 of their papers we have counts for
9 papers
Characterization and In-situ Monitoring of Sub-stoichiometric Adjustable Tc Titanium Nitride Growth
Michael R. Vissers, Jiansong Gao, Jeffrey S. Kline +4
The structural and electrical properties of Ti-N films deposited by reactive sputtering depend on their growth parameters, in particular the Ar:N2 gas ratio. We show that the nitro…
Etch Induced Microwave Losses in Titanium Nitride Superconducting Resonators
Martin Sandberg, Michael R. Vissers, Jeffrey S. Kline +4
We have investigated the correlation between the microwave loss and patterning method for coplanar waveguide titanium nitride resonators fabricated on Si wafers. Three different me…
Identifying capacitive and inductive loss in lumped element superconducting hybrid titanium nitride/aluminum resonators
Michael R. Vissers, Martin P. Weides, Jeffrey S. Kline +2
We present a method to systematically locate and extract capacitive and inductive losses in superconducting resonators at microwave frequencies by use of mixed-material, lumped ele…
Coherence in a transmon qubit with epitaxial tunnel junctions
Martin P. Weides, Jeffrey S. Kline, Michael R. Vissers +5
We developed transmon qubits based on epitaxial tunnel junctions and interdigitated capacitors. This multileveled qubit, patterned by use of all-optical lithography, is a step towa…
Sub-micrometer epitaxial Josephson junctions for quantum circuits
Jeffrey S. Kline, Michael R. Vissers, Fabio C. S. da Silva +11
We present a fabrication scheme and testing results for epitaxial sub-micrometer Josephson junctions. The junctions are made using a high-temperature (1170 K) "via process" yieldin…
Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom
William R. Kelly, Zachary Dutton, John Schlafer +4
The phenomenon of Coherent Population Trapping (CPT) of an atom (or solid state "artificial atom"), and the associated effect of Electromagnetically Induced Transparency (EIT), are…