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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Accesso online: | https://arxiv.org/abs/2503.17582 |
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| _version_ | 1866908277690859520 |
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| author | Gray, K. E. |
| author_facet | Gray, K. E. |
| contents | Analyses of experimental data in the literature show thresholds that directly imply a coexistent superconductive (SC) and pseudogap (PG) phase that, to our knowledge, has not been previously identified. The data used emphasize the essences of d-wave cuprate SC, i.e., the superfluid density and the momentum dependence. For severe underdoping, these data imply that SC condenses conventionally onto the unaltered low-energy density-of-states of a high-temperature PG. Beyond a doping threshold, the high-temperature normal state is replaced, below the SC transition temperature, by a single energetically-favorable thermodynamic phase that embodies a more complex interplay of these orders. This previously hidden phase occupies a central portion of the SC dome, enhances the superfluid density by a factor of two or more to benefit applications, can resolve thirteen mysteries in the literature and suggests an alternative approach to cuprate SC. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_17582 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Broad-based experimental evidence for a hidden phase of cuprate coexistence with far-reaching implications Gray, K. E. Superconductivity Analyses of experimental data in the literature show thresholds that directly imply a coexistent superconductive (SC) and pseudogap (PG) phase that, to our knowledge, has not been previously identified. The data used emphasize the essences of d-wave cuprate SC, i.e., the superfluid density and the momentum dependence. For severe underdoping, these data imply that SC condenses conventionally onto the unaltered low-energy density-of-states of a high-temperature PG. Beyond a doping threshold, the high-temperature normal state is replaced, below the SC transition temperature, by a single energetically-favorable thermodynamic phase that embodies a more complex interplay of these orders. This previously hidden phase occupies a central portion of the SC dome, enhances the superfluid density by a factor of two or more to benefit applications, can resolve thirteen mysteries in the literature and suggests an alternative approach to cuprate SC. |
| title | Broad-based experimental evidence for a hidden phase of cuprate coexistence with far-reaching implications |
| topic | Superconductivity |
| url | https://arxiv.org/abs/2503.17582 |