Critical Current Density and AC Magnetic Susceptibility of High-quality FeTe$_{0.5}$Se$_{0.5}$ Superconducting Tapes
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , |
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| Natura: | Preprint |
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2025
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| _version_ | 1866916585459941376 |
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| author | Zhou, Xin Li, Wenjie Hou, Qiang Wei, Wei Liu, Wenhui Wang, Ke Xing, Xiangzhuo Liu, Linfei Ge, Jun-Yi Qi, Yanpeng Liu, Huajun Ren, Li Tamegai, Tsuyoshi Sun, Yue Shi, Zhixiang |
| author_facet | Zhou, Xin Li, Wenjie Hou, Qiang Wei, Wei Liu, Wenhui Wang, Ke Xing, Xiangzhuo Liu, Linfei Ge, Jun-Yi Qi, Yanpeng Liu, Huajun Ren, Li Tamegai, Tsuyoshi Sun, Yue Shi, Zhixiang |
| contents | Iron telluride-selenium superconducting materials, known for their non-toxicity, ease of preparation, simple structure, and high upper critical fields, have attracted much research interest in practical application. In this work, we conducted electrical transport measurements, magneto-optical imaging, and AC magnetic susceptibility measurements on FeTe$_{0.5}$Se$_{0.5}$ superconducting long tapes fabricated via reel-to-reel pulsed laser deposition. Our transport measurements revealed a high critical current density that remains relatively stable even with increasing external magnetic fields, reaching over $1\times 10^5$ A/cm$^2$ at 8 K and 9 T. The calculated pinning force density indicates that normal point pinning is the primary mechanism in these tapes. The magneto-optical images demonstrated that the tapes show homogeneous superconductivity and uniform distribution of critical current density. The AC magnetic susceptibility measurements also confirmed their strong flux pinning nature of withstanding high magnetic field. Based on these characteristics, FeTe$_{0.5}$Se$_{0.5}$ superconducting tapes show promising prospects for applications under high magnetic fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_16189 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Critical Current Density and AC Magnetic Susceptibility of High-quality FeTe$_{0.5}$Se$_{0.5}$ Superconducting Tapes Zhou, Xin Li, Wenjie Hou, Qiang Wei, Wei Liu, Wenhui Wang, Ke Xing, Xiangzhuo Liu, Linfei Ge, Jun-Yi Qi, Yanpeng Liu, Huajun Ren, Li Tamegai, Tsuyoshi Sun, Yue Shi, Zhixiang Superconductivity Strongly Correlated Electrons Iron telluride-selenium superconducting materials, known for their non-toxicity, ease of preparation, simple structure, and high upper critical fields, have attracted much research interest in practical application. In this work, we conducted electrical transport measurements, magneto-optical imaging, and AC magnetic susceptibility measurements on FeTe$_{0.5}$Se$_{0.5}$ superconducting long tapes fabricated via reel-to-reel pulsed laser deposition. Our transport measurements revealed a high critical current density that remains relatively stable even with increasing external magnetic fields, reaching over $1\times 10^5$ A/cm$^2$ at 8 K and 9 T. The calculated pinning force density indicates that normal point pinning is the primary mechanism in these tapes. The magneto-optical images demonstrated that the tapes show homogeneous superconductivity and uniform distribution of critical current density. The AC magnetic susceptibility measurements also confirmed their strong flux pinning nature of withstanding high magnetic field. Based on these characteristics, FeTe$_{0.5}$Se$_{0.5}$ superconducting tapes show promising prospects for applications under high magnetic fields. |
| title | Critical Current Density and AC Magnetic Susceptibility of High-quality FeTe$_{0.5}$Se$_{0.5}$ Superconducting Tapes |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.16189 |