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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.09129 |
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| _version_ | 1866909231024701440 |
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| author | Rani, Poonam Jha, Rajveer Awana, V. P. S. Mizuguchi, Yoshikazu |
| author_facet | Rani, Poonam Jha, Rajveer Awana, V. P. S. Mizuguchi, Yoshikazu |
| contents | Decomposition of superconductors sometimes becomes crucial when studying essential physical properties of the superconductors. For example, the cuprate superconductor YBa2Cu3O7-d decomposes by long-time air exposure. In this study, we investigate the aging effects on superconducting properties of BiS2-based superconductors Bi4O4S3 and LaO0.5F0.5BiS2, both were first synthesized in 2012, using their polycrystalline samples synthesized several years ago. We find that 12-year-old Bi4O4S3 samples exhibit bulk superconductivity with a slight degradation of the superconducting transition temperature (Tc) of 0.2 K. For a high-pressure-synthesized LaO0.5F0.5BiS2 sample, clear decrease in Tc is observed, which suggests that high-pressure strain is reduced by aging. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_09129 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Aging Effects on Superconducting Properties of BiS2-Based Compounds: First-12-Year Restudy Rani, Poonam Jha, Rajveer Awana, V. P. S. Mizuguchi, Yoshikazu Superconductivity Decomposition of superconductors sometimes becomes crucial when studying essential physical properties of the superconductors. For example, the cuprate superconductor YBa2Cu3O7-d decomposes by long-time air exposure. In this study, we investigate the aging effects on superconducting properties of BiS2-based superconductors Bi4O4S3 and LaO0.5F0.5BiS2, both were first synthesized in 2012, using their polycrystalline samples synthesized several years ago. We find that 12-year-old Bi4O4S3 samples exhibit bulk superconductivity with a slight degradation of the superconducting transition temperature (Tc) of 0.2 K. For a high-pressure-synthesized LaO0.5F0.5BiS2 sample, clear decrease in Tc is observed, which suggests that high-pressure strain is reduced by aging. |
| title | Aging Effects on Superconducting Properties of BiS2-Based Compounds: First-12-Year Restudy |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2405.09129 |