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| Autores principales: | , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2401.12037 |
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| _version_ | 1866916159429804032 |
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| author | Hagawa, Masahide Matsukawa, Michiaki Niinuma, Kota Kudo, Reiya Mizusihima, Yuto Kawarada, Naohisa Yamamoto, Hajime Sano, Kazuhiro Ono, Yoshiaki Sasaki, Takahiko |
| author_facet | Hagawa, Masahide Matsukawa, Michiaki Niinuma, Kota Kudo, Reiya Mizusihima, Yuto Kawarada, Naohisa Yamamoto, Hajime Sano, Kazuhiro Ono, Yoshiaki Sasaki, Takahiko |
| contents | We demonstrated the lattice structures and the superconducting phases of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta exhibiting higher Tc. After the oxygen heat treatment on citrate pyrolysis precursors, their reduction treatment followed by a quench procedure caused higher Tc samples with 26.5-30 K. The crystal structural parameters for the superconducting sample (delta = 0.81) were analyzed from the powder synchrotron X-ray diffraction data using RIETAN-FP program. The effect of magnetic field on the superconducting phase of these samples with different oxygen defects (delta =0.73, 0.81 and 0.87) was examined, for our understanding of the superconducting magnetic field-temperature phase diagram. For delta = 0.87 sample with Tc = 30 K, the resistive critical field Hc* was estimated to be 13 T at 4.2 K. The oxygen deficiency dependence on Tc,on for our samples was compared with the data of several other groups. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_12037 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Crystal structures and superconducting properties of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta Hagawa, Masahide Matsukawa, Michiaki Niinuma, Kota Kudo, Reiya Mizusihima, Yuto Kawarada, Naohisa Yamamoto, Hajime Sano, Kazuhiro Ono, Yoshiaki Sasaki, Takahiko Superconductivity We demonstrated the lattice structures and the superconducting phases of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta exhibiting higher Tc. After the oxygen heat treatment on citrate pyrolysis precursors, their reduction treatment followed by a quench procedure caused higher Tc samples with 26.5-30 K. The crystal structural parameters for the superconducting sample (delta = 0.81) were analyzed from the powder synchrotron X-ray diffraction data using RIETAN-FP program. The effect of magnetic field on the superconducting phase of these samples with different oxygen defects (delta =0.73, 0.81 and 0.87) was examined, for our understanding of the superconducting magnetic field-temperature phase diagram. For delta = 0.87 sample with Tc = 30 K, the resistive critical field Hc* was estimated to be 13 T at 4.2 K. The oxygen deficiency dependence on Tc,on for our samples was compared with the data of several other groups. |
| title | Crystal structures and superconducting properties of metallic double-chain based cuprate Pr2Ba4Cu7O15-delta |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2401.12037 |