175 citations · 1.5k across the 56 of their papers we have counts for
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cond-mat.supr-con2019★ 2 cited
Planar GHz Resonators on SrTiO3: Suppressed Losses at Temperatures below 1 K
Vincent T. Engl, Nikolaj G. Ebensperger, Lars Wendel +1
The complex dielectric constant of SrTiO reaches high values at cryogenic temperatures, while the dielectric losses () are muc…
cond-mat.supr-con2019★ 3 cited
Microwave probing of bulk dielectrics using superconducting coplanar resonators in distant-flip-chip geometry
Lars Wendel, Vincent T. Engl, Gabriele Untereiner +6
Dielectric measurements on insulating materials at cryogenic temperatures can be challenging, depending on the frequency and temperature ranges of interest. We present a technique…
cond-mat.mtrl-sci2019★ 9 cited
Characterizing dielectric properties of ultra-thin films using superconducting coplanar microwave resonators
Nikolaj G. Ebensperger, Benedikt Ferdinand, Dieter Koelle +3
We present an experimental approach for cryogenic dielectric measurements on ultra-thin insulating films. Based on a coplanar microwave waveguide design we implement superconductin…