Investigation of superconducting gap of high-entropy telluride AgInSnPbBiTe5
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arXiv
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866929533666459648 |
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| author | Seshita, Asato Okabe, Hirotaka Kasem, Riad Watanabe, Yuto Nakamura, Jumpei G. Nishimura, Shoichiro Terashima, Kensei Matsumoto, Ryo Takano, Yoshihiko Yamashita, Aichi Fujita, Masaki Mizuguchi, Yoshikazu |
| author_facet | Seshita, Asato Okabe, Hirotaka Kasem, Riad Watanabe, Yuto Nakamura, Jumpei G. Nishimura, Shoichiro Terashima, Kensei Matsumoto, Ryo Takano, Yoshihiko Yamashita, Aichi Fujita, Masaki Mizuguchi, Yoshikazu |
| contents | We performed transverse-field muon spin relaxation/rotation (TF-μSR) on a high-entropy-type (HE-type) superconductor AgInSnPbBiTe5. The emergence of bulk superconducting states was confirmed from magnetic susceptibility, specific heat, and μSR. The superconducting gap 2Δ(0) estimated from μSR was clearly larger than that expected from conventional weak-coupling phonon-mediated model, suggesting the strong-coupling nature of superconductivity. In addition, a long penetration depth of 3.21(7) μm was obtained. The strong-coupling nature of superconductivity and the long penetration depth are similar to the trends observed in the other HE-type superconductors (HE alloys and transition-metal zirconides), which may be universal feature of HE-type superconductors. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_06548 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Investigation of superconducting gap of high-entropy telluride AgInSnPbBiTe5 Seshita, Asato Okabe, Hirotaka Kasem, Riad Watanabe, Yuto Nakamura, Jumpei G. Nishimura, Shoichiro Terashima, Kensei Matsumoto, Ryo Takano, Yoshihiko Yamashita, Aichi Fujita, Masaki Mizuguchi, Yoshikazu Superconductivity Materials Science We performed transverse-field muon spin relaxation/rotation (TF-μSR) on a high-entropy-type (HE-type) superconductor AgInSnPbBiTe5. The emergence of bulk superconducting states was confirmed from magnetic susceptibility, specific heat, and μSR. The superconducting gap 2Δ(0) estimated from μSR was clearly larger than that expected from conventional weak-coupling phonon-mediated model, suggesting the strong-coupling nature of superconductivity. In addition, a long penetration depth of 3.21(7) μm was obtained. The strong-coupling nature of superconductivity and the long penetration depth are similar to the trends observed in the other HE-type superconductors (HE alloys and transition-metal zirconides), which may be universal feature of HE-type superconductors. |
| title | Investigation of superconducting gap of high-entropy telluride AgInSnPbBiTe5 |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2410.06548 |