Niobium stripline resonators for microwave studies on superconductors

Markus Thiemann; Daniel Bothner; Dieter Koelle; Reinhold Kleiner; Martin Dressel; Marc Scheffler

doi:10.1088/1742-6596/568/2/022043

Niobium stripline resonators for microwave studies on superconductors

Superconductivity 2015-03-26 v1

Authors: Markus Thiemann , Daniel Bothner , Dieter Koelle , Reinhold Kleiner , Martin Dressel , Marc Scheffler

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Abstract

Microwave spectroscopy is a powerful experimental tool to reveal information on the intrinsic properties of superconductors. Superconducting stripline resonators, where the material under study constitutes one of the ground planes, offer a high sensitivity to investigate superconducting bulk samples. In order to improve this measurement technique, we have studied stripline resonators made of niobium, and we compare the results to lead stripline resonators. With this technique we are able to determine the temperature dependence of the complex conductivity of niobium and the energy gap $\Delta(0)=2.1$ meV. Finally we show measurements at the superconducting transition of a tantalum bulk sample using niobium stripline resonators.

Keywords

stripline resonators niobium microwave spectroscopy superconductors complex conductivity energy gap bulk samples

Cite

@article{arxiv.1408.4727,
  title  = {Niobium stripline resonators for microwave studies on superconductors},
  author = {Markus Thiemann and Daniel Bothner and Dieter Koelle and Reinhold Kleiner and Martin Dressel and Marc Scheffler},
  journal= {arXiv preprint arXiv:1408.4727},
  year   = {2015}
}

Niobium stripline resonators for microwave studies on superconductors

Abstract

Keywords

Cite

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