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Microwave measurements of the high magnetic field vortex motion pinning parameters in Nb3Sn
- Source :
- Superconductor Science and Technology. 34:014003
- Publication Year :
- 2020
- Publisher :
- IOP Publishing, 2020.
-
Abstract
- The high frequency vortex motion in Nb$_3$Sn was analyzed in this work up to 12 T. We used a dielectric loaded resonator tuned at 15 GHz to evaluate the surface impedance $Z$ of a Nb$_3$Sn bulk sample (24.8 at.\%Sn). From the field induced variation of $Z$, the high frequency vortex parameters (the pinning constant $k_p$, the depinning frequency $\nu_p$ and the flux flow resistivity $\rho_{ff}$) were obtained over a large temperature and field range; their field and temperature dependence were analyzed. Comparison with other superconducting materials shows that high frequency applications in strong magnetic fields are also feasible with Nb$_3$Sn. In the present work, we report the first measurements about the microwave response in Nb$_3$Sn in strong magnetic fields.<br />Comment: 24 pages, 12 figures
- Subjects :
- Materials science
Condensed matter physics
Condensed Matter - Superconductivity
Metals and Alloys
Nb3Sn, surface impedance, microwave, high magnetic fields, vortex pinning parameters
FOS: Physical sciences
Motion (geometry)
Condensed Matter Physics
Vortex
Superconductivity (cond-mat.supr-con)
Condensed Matter::Superconductivity
Materials Chemistry
Ceramics and Composites
Surface impedance
Electrical and Electronic Engineering
High magnetic field
Microwave
Subjects
Details
- ISSN :
- 13616668 and 09532048
- Volume :
- 34
- Database :
- OpenAIRE
- Journal :
- Superconductor Science and Technology
- Accession number :
- edsair.doi.dedup.....1c980400baecaddbea3c8048d1f08253
- Full Text :
- https://doi.org/10.1088/1361-6668/abc05d