The experimental data for the paper "Intrinsic Quasiparticle Lifetime in a Superconducting Aluminum"

The experimental data for the paper "Intrinsic Quasiparticle Lifetime in a Superconducting Aluminum"

Description

We use time-resolved thermometry to monitor the decay of nonequilibrium quasiparticles in superconducting Al in the temperature range from 0.3 K to 1.2 K. The quasiparticle lifetime at higher temperatures (T > 0.7 K) agrees well with the calculated energy flow from electrons to phonons, but at lower temperatures it is significantly shorter than the theory predicts. We show well-defined internal equilibrium of quasiparticle system in the studied thermal transients, which implicates that quasiparticle-quasiparticle relaxation is much faster than electron-phonon interaction.
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Year of publication

2025

Authors

Department of Applied Physics

Alexander Savin Orcid -palvelun logo - Creator

Konrad Norowski - Creator

Maciej Zgirski - Creator

Marek Foltyn - Creator

Polish Academy of Sciences - Contributor

Zenodo - Publisher

Other information

Fields of science

Physical sciences

Open access

Open

License

Creative Commons Attribution 4.0 International (CC BY 4.0)

The experimental data for the paper "Intrinsic Quasiparticle Lifetime in a Superconducting Aluminum" - Research.fi