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| Main Author: | |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2603.28641 |
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Table of Contents:
- Cuprate HTSCs exhibit a dome-shaped dependence of the superconducting transition temperature on the charge carrier concentration, Tc(p), with a maximum at p = 0.16. Near the composition p = 1/8, a dip in Tc is observed (the "1/8 anomaly"), which is associated with charge and spin ordering in the CuO2 planes. By investigating the hydration process of La2-xBaxCuO4 and YBa2Cu3O6+delta conducted at room temperature (RT) and under the influence of a high-frequency magnetic field, we have discovered unusual weight changes in HTSC samples during the initial stage of hydration. For both studied compounds, the dependence of weight changes on the concentration p was found to almost exactly replicate the patterns of the corresponding Tc(p) dependencies, including the "1/8 anomaly". Such a manifestation of characteristic low-temperature features of HTSC systems at RT is intriguing. The results of this experimental work will be useful for the further development of HTSC theories.