Microwave surface resistance of Tl-1223 films in a dc magnetic field
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arXiv
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| Auteurs principaux: | , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914353395007488 |
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| author | Magalotti, Alessandro Alimenti, Andrea Bellingeri, Emilio Bernini, Cristina Calatroni, Sergio Leveratto, Alessandro Silva, Enrico Torokhtii, Kostiantyn Vaglio, Ruggero García, Pablo Vidal Pompeo, Nicola |
| author_facet | Magalotti, Alessandro Alimenti, Andrea Bellingeri, Emilio Bernini, Cristina Calatroni, Sergio Leveratto, Alessandro Silva, Enrico Torokhtii, Kostiantyn Vaglio, Ruggero García, Pablo Vidal Pompeo, Nicola |
| contents | We present first preliminary surface impedance measurements on Tl-1223 films in dc magnetic fields, in view of potential applications for the next generation Future Circular Collider (FCC-hh) at CERN. The Tl-1223 samples were produced through laser ablation, with nominal thickness of 1 μm and grown on a thick LaAl2O3 substrate. The presence of Tl-1212 phase identified by XRD and BSE microscopy, could be avoided by changing the oxygen partial pressure during heat treatment. The high-frequency transport properties of the samples were characterized using microwave resonant devices, at fixed frequencies of 14.9 GHz, 24.2 GHz and 26.7 GHz, in the temperature range 40 K to 140 K. An external applied static magnetic field up to 12 T was applied. Samples from subsequent batches exhibited huge improvements in the microwave properties, confirming the progress in the deposition technique. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_15538 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Microwave surface resistance of Tl-1223 films in a dc magnetic field Magalotti, Alessandro Alimenti, Andrea Bellingeri, Emilio Bernini, Cristina Calatroni, Sergio Leveratto, Alessandro Silva, Enrico Torokhtii, Kostiantyn Vaglio, Ruggero García, Pablo Vidal Pompeo, Nicola Superconductivity We present first preliminary surface impedance measurements on Tl-1223 films in dc magnetic fields, in view of potential applications for the next generation Future Circular Collider (FCC-hh) at CERN. The Tl-1223 samples were produced through laser ablation, with nominal thickness of 1 μm and grown on a thick LaAl2O3 substrate. The presence of Tl-1212 phase identified by XRD and BSE microscopy, could be avoided by changing the oxygen partial pressure during heat treatment. The high-frequency transport properties of the samples were characterized using microwave resonant devices, at fixed frequencies of 14.9 GHz, 24.2 GHz and 26.7 GHz, in the temperature range 40 K to 140 K. An external applied static magnetic field up to 12 T was applied. Samples from subsequent batches exhibited huge improvements in the microwave properties, confirming the progress in the deposition technique. |
| title | Microwave surface resistance of Tl-1223 films in a dc magnetic field |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2510.15538 |