Reply to "Threefold error in the reported zero-field cooled magnetic moment of single crystal $La_2SmNi_2O_7$ (arXiv: 2602.23240)"
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| author | Li, Feiyu Xing, Zhenfang Peng, Di Dou, Jie Guo, Ning Ma, Liang Zhang, Yulin Wang, Lingzhen Luo, Jun Yang, Jie Zhang, Jian Chang, Tieyan Chen, Yu-Sheng Cai, Weizhao Cheng, Jinguang Wang, Yuzhu Liu, Yuxin Luo, Tao Hirao, Naohisa Matsuoka, Takahiro Kadobayashi, Hirokazu Zeng, Zhidan Zheng, Qiang Zhou, Rui Zeng, Qiaoshi Tao, Xutang Zhang, Junjie |
| author_facet | Li, Feiyu Xing, Zhenfang Peng, Di Dou, Jie Guo, Ning Ma, Liang Zhang, Yulin Wang, Lingzhen Luo, Jun Yang, Jie Zhang, Jian Chang, Tieyan Chen, Yu-Sheng Cai, Weizhao Cheng, Jinguang Wang, Yuzhu Liu, Yuxin Luo, Tao Hirao, Naohisa Matsuoka, Takahiro Kadobayashi, Hirokazu Zeng, Zhidan Zheng, Qiang Zhou, Rui Zeng, Qiaoshi Tao, Xutang Zhang, Junjie |
| contents | We respond to the critique by Aleksandr V. Korolev and Evgeny F. Talantsev on the superconducting phase fraction ($f$) calculations in Li et al. Nature 649, 871-878 (2026). First, the weak upturn in the low-temperature tail of our data has been confirmed to originate from the background, and the paramagnetic Meissner effect is absent in our case; thus, field-cooled (FC) data can be used for superconducting phase fraction calculations. Second, demagnetization effect must be calculated based on the actual measured moment as a function of $f$, which has been well-established and routinely employed in the superconductivity community. In contrast, Korolev and Talantsev treated the demagnetization field as a constant; thus, their calculation underestimates $f$ by a factor of $(1-Nχ_{meas})(1-N)$. This factor is close to 1/3, given $N$ = 0.849, $χ_{meas}$ = -1.313 in our study, which explains the origin of their deviated result (nearly three times smaller than our results). Third, our sample is a homogeneous high-quality bulk single crystal, evidenced by various techniques, making the existence of multiple discrete superconducting regions highly unlikely. We conclude that the superconducting phase fraction calculations reported in Li et al. Nature 649, 871-878 (2026) are not invalidated by the analyses presented in Korolev et al. arXiv: 2602.23240 (2026). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_23842 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Reply to "Threefold error in the reported zero-field cooled magnetic moment of single crystal $La_2SmNi_2O_7$ (arXiv: 2602.23240)" Li, Feiyu Xing, Zhenfang Peng, Di Dou, Jie Guo, Ning Ma, Liang Zhang, Yulin Wang, Lingzhen Luo, Jun Yang, Jie Zhang, Jian Chang, Tieyan Chen, Yu-Sheng Cai, Weizhao Cheng, Jinguang Wang, Yuzhu Liu, Yuxin Luo, Tao Hirao, Naohisa Matsuoka, Takahiro Kadobayashi, Hirokazu Zeng, Zhidan Zheng, Qiang Zhou, Rui Zeng, Qiaoshi Tao, Xutang Zhang, Junjie Superconductivity Materials Science Strongly Correlated Electrons We respond to the critique by Aleksandr V. Korolev and Evgeny F. Talantsev on the superconducting phase fraction ($f$) calculations in Li et al. Nature 649, 871-878 (2026). First, the weak upturn in the low-temperature tail of our data has been confirmed to originate from the background, and the paramagnetic Meissner effect is absent in our case; thus, field-cooled (FC) data can be used for superconducting phase fraction calculations. Second, demagnetization effect must be calculated based on the actual measured moment as a function of $f$, which has been well-established and routinely employed in the superconductivity community. In contrast, Korolev and Talantsev treated the demagnetization field as a constant; thus, their calculation underestimates $f$ by a factor of $(1-Nχ_{meas})(1-N)$. This factor is close to 1/3, given $N$ = 0.849, $χ_{meas}$ = -1.313 in our study, which explains the origin of their deviated result (nearly three times smaller than our results). Third, our sample is a homogeneous high-quality bulk single crystal, evidenced by various techniques, making the existence of multiple discrete superconducting regions highly unlikely. We conclude that the superconducting phase fraction calculations reported in Li et al. Nature 649, 871-878 (2026) are not invalidated by the analyses presented in Korolev et al. arXiv: 2602.23240 (2026). |
| title | Reply to "Threefold error in the reported zero-field cooled magnetic moment of single crystal $La_2SmNi_2O_7$ (arXiv: 2602.23240)" |
| topic | Superconductivity Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2602.23842 |