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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Casati, R. |
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Kočí, Jan | Prague |
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Azevedo, Nuno Monteiro |
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Rignanese, Gian-Marco |
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Palmstrøm, C. J.
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Publications (10/10 displayed)
- 2021Parity-preserving and magnetic field–resilient superconductivity in InSb nanowires with Sn shellscitations
- 2021Parity-preserving and magnetic field–resilient superconductivity in InSb nanowires with Sn shellscitations
- 2020Parity-preserving and magnetic field resilient superconductivity in indium antimonide nanowires with tin shells
- 2018Electronic structure of epitaxial half-Heusler Co1-xNixTiSb across the semiconductor to metal transitioncitations
- 2016Observation of a topologically non-trivial surface state in half-Heusler PtLuSb (001) thin filmscitations
- 2015Anisotropic spin relaxation in $n$-GaAs from strong inhomogeneous hyperfine fields produced by the dynamical polarization of nucleicitations
- 2014Tuning spin orbit interaction in high quality gate-defined InAs one-dimensional channels
- 2012Planar Superconducting Resonators with Internal Quality Factors above One Millioncitations
- 2011Martensite transformation of epitaxial Ni-Ti filmscitations
- 2000Epitaxial growth of ferromagnetic Ni2MnGa on GaAs(001) using NiGa interlayerscitations
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document
Planar Superconducting Resonators with Internal Quality Factors above One Million
Abstract
We describe the fabrication and measurement of microwave coplanar waveguide resonators with internal quality factors above 10 million at high microwave powers and over 1 million at low powers, with the best low power results approaching 2 million, corresponding to ~1 photon in the resonator. These quality factors are achieved by controllably producing very smooth and clean interfaces between the resonators' aluminum metallization and the underlying single crystal sapphire substrate. Additionally, we describe a method for analyzing the resonator microwave response, with which we can directly determine the internal quality factor and frequency of a resonator embedded in an imperfect measurement circuit. ; Comment: 4 pages, 3 figures, 1 table